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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



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FORM 10-Q



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|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------



For the quarterly period ended June 30, 2005



OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------



For the transition period from
 to



Commission File Number 000-23541



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NANOGEN, INC.

(Exact name of Registrant as specified in its charter)



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|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                       |  | 33-0489621                          
|(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification No.)
|                                                               | 
|10398 Pacific Center Court, San Diego, CA                      |  | 92121                               
|(Address of principal executive offices)                       |  | (Zip code)                          



(858) 410-4600

(Registrants telephone number, including area code)



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Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES x NO ̈



Indicate by check mark whether the registrant is an
accelerated filer (as defined in Rule 12b-2 of the Exchange Act).

YES x NO ̈



As of July 15, 2005, 47,846,345 shares of the Registrants Common Stock were outstanding.



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##### Table of Contents

NANOGEN, INC.

FORM 10-Q

INDEX



|             |  |                                                                                                                       |  |     
|------------ |  | --------------------------------------------------------------------------------------------------------------------- |  | ----
|             |  |                                                                                                                       |  | Page
|PART I.      |  | FINANCIAL INFORMATION                                                                                                 |  |     
|             |  |                                                                                                                      
|Item 1.      |  | Condensed Consolidated Balance Sheets at June 30, 2005 (unaudited) and December 31, 2004                              |  | 1   
|             |  |                                                                                                                      
|             |  | Condensed Consolidated Statements of Operations (unaudited) for the three and six months ended June 30, 2005 and 2004 |  | 2   
|             |  |                                                                                                                      
|             |  | Condensed Consolidated Statements of Cash Flows (unaudited) for the six months ended June 30, 2005 and 2004           |  | 3   
|             |  |                                                                                                                      
|             |  | Notes to Condensed Consolidated Financial Statements (unaudited)                                                      |  | 4   
|             |  |                                                                                                                      
|Item 2.      |  | Managements Discussion and Analysis of Financial Condition and Results of Operations                                 |  | 17  
|Item 3.      |  | Quantitative and Qualitative Disclosure About Market Risk                                                             |  | 46  
|Item 4.      |  | Controls and Procedures                                                                                               |  | 47  
|             |  |                                                                                                                      
|PART II.     |  | OTHER INFORMATION                                                                                                     |  |     
|Item 1.      |  | Legal Proceedings                                                                                                     |  | 48  
|Item 2.      |  | Unregistered Sale of Equity Securities and Use of Proceeds                                                            |  | 48  
|Item 3.      |  | Defaults Upon Senior Securities                                                                                       |  | 48  
|Item 4.      |  | Submission of Matters to a Vote of Security Holders                                                                   |  | 48  
|Item 5.      |  | Other Information                                                                                                     |  | 48  
|Item 6.      |  | Exhibits                                                                                                              |  | 49  
|             |  |                                                                                                                      
|Signatures   |  |                                                                                                                       |  |     
|             |  |                                                                                                                      
|EXHIBITS     |  |                                                                                                                       |  |     
|Exhibit 31.1 |  |                                                                                                                       |  |     
|Exhibit 31.2 |  |                                                                                                                       |  |     
|Exhibit 32.1 |  |                                                                                                                       |  |     
|Exhibit 32.2 |  |                                                                                                                       |  |     



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##### Table of Contents

PART I. FINANCIAL INFORMATION



|ITEM 1. | CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
|------- | -------------------------------------------------------



NANOGEN, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except par value and share data)



|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |  | ------------------ | -------- | - | ---------------------- | - | -------- | -
|                                                                                                                                                                                                                   |  | As of June 30,2005 |          |   | As of December 31,2004 |  
|                                                                                                                                                                                                                   |  | (unaudited)        |          |   |                        |  
|ASSETS                                                                                                                                                                                                             |  |                    |          |   |                        |   |          |  
|Current assets:                                                                                                                                                                                                    |  |                    |          |   |                        |   |          |  
|Cash and cash equivalents                                                                                                                                                                                          |  | $                  | 18,824   |   |                        | $ | 15,372   |  
|Short-term investments                                                                                                                                                                                             |  |                    | 13,051   |   |                        |   | 36,562   |  
|Receivables, net                                                                                                                                                                                                   |  |                    | 2,334    |   |                        |   | 2,023    |  
|Inventories, net                                                                                                                                                                                                   |  |                    | 2,274    |   |                        |   | 1,744    |  
|Other current assets                                                                                                                                                                                               |  |                    | 2,253    |   |                        |   | 1,741    |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total current assets                                                                                                                                                                                               |  |                    | 38,736   |   |                        |   | 57,442   |  
|Property and equipment, net                                                                                                                                                                                        |  |                    | 8,101    |   |                        |   | 8,500    |  
|Acquired technology rights, net                                                                                                                                                                                    |  |                    | 10,587   |   |                        |   | 11,819   |  
|Restricted cash                                                                                                                                                                                                    |  |                    | 1,411    |   |                        |   | 1,411    |  
|Other assets, net                                                                                                                                                                                                  |  |                    | 804      |   |                        |   | 780      |  
|Goodwill                                                                                                                                                                                                           |  |                    | 96,178   |   |                        |   | 96,072   |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total assets                                                                                                                                                                                                       |  | $                  | 155,817  |   |                        | $ | 176,024  |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|                                                                                                                                                                                                                   |  |                   
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                                                               |  |                    |          |   |                        |   |          |  
|Current liabilities:                                                                                                                                                                                               |  |                    |          |   |                        |   |          |  
|Accounts payable and accrued liabilities                                                                                                                                                                           |  | $                  | 7,653    |   |                        | $ | 9,923    |  
|Deferred revenue                                                                                                                                                                                                   |  |                    | 442      |   |                        |   | 420      |  
|Common stock warrants                                                                                                                                                                                              |  |                    | 275      |   |                        |   | 1,112    |  
|Current portion of debt obligations                                                                                                                                                                                |  |                    | 874      |   |                        |   | 988      |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total current liabilities                                                                                                                                                                                          |  |                    | 9,244    |   |                        |   | 12,443   |  
|Debt obligations, less current portion                                                                                                                                                                             |  |                    | 658      |   |                        |   | 610      |  
|Other long-term liabilities                                                                                                                                                                                        |  |                    | 5,508    |   |                        |   | 5,455    |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total long-term liabilities                                                                                                                                                                                        |  |                    | 6,166    |   |                        |   | 6,065    |  
|Commitments and contingencies                                                                                                                                                                                      |  |                    |          |   |                        |   |          |  
|Stockholders equity:                                                                                                                                                                                              |  |                    |          |   |                        |   |          |  
|Convertible preferred stock, $0.001 par value, 5,000,000 shares authorized; no shares issued and outstanding at June 30, 2005 and December 31,
2004                                                                |  |                    |         |   |                        |   |         |  
|Common stock, $0.001 par value, 135,000,000 shares authorized at June 30, 2005 and December 31, 2004; 47,859,967 and 47,765,581 shares issued
and outstanding at June 30, 2005 and December 31, 2004, respectively |  |                    | 48       |   |                        |   | 48       |  
|Additional paid-in capital                                                                                                                                                                                         |  |                    | 375,404  |   |                        |   | 374,910  |  
|Accumulated other comprehensive loss                                                                                                                                                                               |  |                    | (115     | ) |                        |   | (174     | )
|Deferred compensation                                                                                                                                                                                              |  |                    | (868     | ) |                        |   | (1,184   | )
|Accumulated deficit                                                                                                                                                                                                |  |                    | (233,140 | ) |                        |   | (215,162 | )
|Treasury stock, at cost, 500,189 shares at June 30, 2005 and December 31, 2004, respectively                                                                                                                       |  |                    | (922     | ) |                        |   | (922     | )
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total stockholders equity                                                                                                                                                                                         |  |                    | 140,407  |   |                        |   | 157,516  |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  
|Total liabilities and stockholders equity                                                                                                                                                                         |  | $                  | 155,817  |   |                        | $ | 176,024  |  
|                                                                                                                                                                                                                   |  |                    |          |   |                        |   |          |  



See accompanying notes.



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NANOGEN, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

(in thousands, except
per share data)



|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|------------------------------------------------------------------------- |  | --------------------------- | ------ | - | ------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                                                                          |  | Three Months Ended June 30, |        |   | Six Months Ended June 30, |  
|                                                                          |  | 2005                        |        |   | 2004                      |   |         | 2005 |  |   | 2004    |  
|Revenues:                                                                 |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Product sales                                                             |  | $                           | 1,078  |   |                           | $ | 477     |      |  | $ | 2,288   |   |  | $ | 1,609   |  
|License fees and royalty income                                           |  |                             | 1,623  |   |                           |   | 38      |      |  |   | 3,323   |   |  |   | 190     |  
|Sponsored research                                                        |  |                             |       |   |                           |   | 125     |      |  |   |        |   |  |   | 500     |  
|Contracts and grants                                                      |  |                             | 434    |   |                           |   | 478     |      |  |   | 700     |   |  |   | 978     |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Total revenues                                                            |  |                             | 3,135  |   |                           |   | 1,118   |      |  |   | 6,311   |   |  |   | 3,277   |  
|                                                                          |  |                             |        |  
|Costs and expenses:                                                       |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Cost of product sales                                                     |  |                             | 1,128  |   |                           |   | 1,940   |      |  |   | 2,274   |   |  |   | 2,854   |  
|Research and development                                                  |  |                             | 5,160  |   |                           |   | 4,040   |      |  |   | 10,072  |   |  |   | 8,388   |  
|Selling, general and administrative                                       |  |                             | 6,410  |   |                           |   | 4,234   |      |  |   | 12,377  |   |  |   | 7,809   |  
|Charge for acquired in-process research and development                   |  |                             |       |   |                           |   | 3,758   |      |  |   |        |   |  |   | 3,758   |  
|Amortization of purchased intangible assets                               |  |                             | 392    |   |                           |   |        |      |  |   | 785     |   |  |   |        |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Total costs and expenses                                                  |  |                             | 13,090 |   |                           |   | 13,972  |      |  |   | 25,508  |   |  |   | 22,809  |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Loss from operations                                                      |  |                             | (9,955 | ) |                           |   | (12,854 | )    |  |   | (19,197 | ) |  |   | (19,532 | )
|Other income (expense):                                                   |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Interest income, net                                                      |  |                             | 309    |   |                           |   | 129     |      |  |   | 488     |   |  |   | 231     |  
|Other expense                                                             |  |                             | (22    | ) |                           |   | (147    | )    |  |   | (110    | ) |  |   | (167    | )
|Warrant valuation adjustment                                              |  |                             | (44    | ) |                           |   |        |      |  |   | 837     |   |  |   |        |  
|Gain (loss) on foreign currency translation                               |  |                             | (9     | ) |                           |   | (17     | )    |  |   | 4       |   |  |   | 1,204   |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Total other income (expense)                                              |  |                             | 234    |   |                           |   | (35     | )    |  |   | 1,219   |   |  |   | 1,268   |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Net loss                                                                  |  | $                           | (9,721 | ) |                           | $ | (12,889 | )    |  | $ | (17,978 | ) |  | $ | (18,264 | )
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Net loss per share basic and diluted                                     |  | $                           | (0.20  | ) |                           | $ | (0.39   | )    |  | $ | (0.38   | ) |  | $ | (0.61   | )
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Number of shares used in computing net loss per share  basic and diluted |  |                             | 47,783 |   |                           |   | 32,798  |      |  |   | 47,778  |   |  |   | 29,870  |  
|                                                                          |  |                             |        |   |                           |   |         |      |  |   |         |   |  |   |         |  



See accompanying notes.



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NANOGEN, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

(in thousands)



|                                                                                                                           |  |                           |         |   |      |   |         |  
|-------------------------------------------------------------------------------------------------------------------------- |  | ------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                                                           |  | Six months ended June 30, |        
|                                                                                                                           |  | 2005                      |         |   | 2004 |  
|Operating activities:                                                                                                      |  |                           |         |   |      |   |         |  
|Net loss                                                                                                                   |  | $                         | (17,978 | ) |      | $ | (18,264 | )
|Adjustments to reconcile net loss to net cash used in operating activities:                                                |  |                           |         |   |      |   |         |  
|Depreciation and amortization                                                                                              |  |                           | 2,901   |   |      |   | 1,795   |  
|Charge for acquired in-process research and development                                                                    |  |                           |        |   |      |   | 3,758   |  
|Inventory reserves                                                                                                         |  |                           |        |   |      |   | 1,525   |  
|Foreign currency translation gain                                                                                          |  |                           |        |   |      |   | (1,204  | )
|Other non-cash charges                                                                                                     |  |                           | (177    | ) |      |   | 6       |  
|Loss on disposal of fixed assets                                                                                           |  |                           | 31      |   |      |   |        |  
|Accretion related to short-term investments                                                                                |  |                           | 178     |   |      |   | 95      |  
|Stock-based compensation expense                                                                                           |  |                           | 612     |   |      |   | 4       |  
|Warrant valuation adjustment                                                                                               |  |                           | (837    | ) |      |   |        |  
|(Decreases) increase in cash caused by changes in operating assets and liabilities, excluding the effects of acquisitions: |  |                           |         |   |      |   |         |  
|Receivables                                                                                                                |  |                           | (205    | ) |      |   | (27     | )
|Inventories                                                                                                                |  |                           | (879    | ) |      |   | 463     |  
|Other current and long-term assets                                                                                         |  |                           | (508    | ) |      |   | (492    | )
|Accounts payable and accrued liabilities                                                                                   |  |                           | (695    | ) |      |   | (2,756  | )
|Deferred revenue and other long-term liabilities                                                                           |  |                           | 22      |   |      |   | (65     | )
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Net cash used in operating activities                                                                                      |  |                           | (17,535 | ) |      |   | (15,162 | )
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Investing activities:                                                                                                      |  |                           |         |   |      |   |         |  
|Purchase of short-term investments                                                                                         |  |                           | (22,566 | ) |      |   | (38,591 | )
|Proceeds from sale and maturities of short-term investments                                                                |  |                           | 46,005  |   |      |   | 7,126   |  
|Acquisition of businesses, net of cash acquired                                                                            |  |                           | (1,681  | ) |      |   | (1,370  | )
|Purchase of equipment                                                                                                      |  |                           | (927    | ) |      |   | (149    | )
|Funding of bridge notes receivable related to acquisition                                                                  |  |                           |        |   |      |   | (998    | )
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Net cash provided by (used in) investing activities                                                                        |  |                           | 20,831  |   |      |   | (33,982 | )
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Financing activities:                                                                                                      |  |                           |         |   |      |   |         |  
|Principal payments on long-term obligations                                                                                |  |                           | (546    | ) |      |   | (238    | )
|Issuance of common stock, net                                                                                              |  |                           | 198     |   |      |   | 48,906  |  
|Proceeds from development partner                                                                                          |  |                           |        |   |      |   | 441     |  
|Proceeds from long-term obligations                                                                                        |  |                           | 480     |   |      |   |        |  
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Net cash provided by financing activities                                                                                  |  |                           | 132     |   |      |   | 49,109  |  
|Effect of exchange rate changes                                                                                            |  |                           | 24      |   |      |   | 28      |  
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Net increase (decrease) in cash and cash equivalents                                                                       |  |                           | 3,452   |   |      |   | (7      | )
|Cash and cash equivalents at beginning of period                                                                           |  |                           | 15,372  |   |      |   | 8,550   |  
|                                                                                                                           |  |                           |         |   |      |   |         |  
|Cash and cash equivalents at end of period                                                                                 |  | $                         | 18,824  |   |      | $ | 8,543   |  
|                                                                                                                           |  |                           |         |   |      |   |         |  



See accompanying notes.



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NANOGEN, INC.



NOTES TO CONDENSED
CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)



June 30,
2005



1. Basis of Presentation



The accompanying unaudited consolidated financial statements have been
prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of
the information and disclosures required by accounting principles generally accepted in the United States of America for complete financial statements. The consolidated balance sheet as of June 30, 2005, consolidated statements of operations for the
three and six months ended June 30, 2005 and 2004, and the consolidated statements of cash flows for the six months ended June 30, 2005 and 2004 are unaudited, but include all adjustments (consisting of normal recurring adjustments, except in June
30, 2004, for a $1.5 million inventory charge and the entries related to the acquisition of SynX Pharma Inc., including a $3.8 million charge to in-process research and development both of which are discussed herein) which in the opinion of
management are considered necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented. The results of operations for the three and six months ended June 30, 2005 shown herein are not
necessarily indicative of the results that may be expected for the year ending December 31, 2005.



For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited consolidated
financial statements for the year ended December 31, 2004 included in the Nanogen, Inc. Annual Report on Form 10-K for the year ended December 31, 2004 filed with the Securities and Exchange Commission on March 15, 2005.



When we refer to we, our, us or
Nanogen in this document, we mean the current Delaware corporation Nanogen, Inc. and its California predecessor, as well as all of our consolidated subsidiaries.



Basis of Consolidation



Our consolidated financial statements include the assets, liabilities and operating results of majority-owned subsidiaries
and other subsidiaries controlled by us. All significant intercompany accounts and transactions have been eliminated. As of June 30, 2005, we do not have any investments in entities that are variable interest entities for which we are the primary
beneficiary.



Use of Estimates



The preparation of financial statements in conformity with accounting
principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and related disclosures at the date of the financial statements, and the amounts of
revenues and expenses reported during the period. Actual results could differ from those estimates.



Long-Lived Assets



In accordance with Statement of Financial Accounting Standards (SFAS) No. 144, Accounting for Impairment or Disposal of Long-Lived
Assets, we periodically assess certain of our long-lived assets, such as property and equipment and intangible assets other than goodwill, for potential impairment when there is a change in circumstances that indicates the carrying values
of the assets may not be recovered. An impairment occurs when the undiscounted cash flows expected to be generated by an asset are less



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than its carrying amount. Any required impairment loss would be measured as the amount by which the assets carrying value exceeds its fair value, and
would be recorded as a reduction in the carrying value of the related asset and a charge to operating expense. During the three and six months ended June 30, 2005 and 2004, we had no impairment losses.



Goodwill



We have elected to perform our analysis of goodwill during the fourth
quarter this year. In addition, we will perform an analysis whenever events and changes in circumstances suggest that the carrying amount may not be recoverable. Based on our analysis no indicators of impairment were identified in the first half of
2005.



Net Loss per Share



We compute net income (loss) per share in accordance with SFAS No. 128,
Earnings per Share. We compute basic net income (loss) per share by dividing the net income (loss) available to common stockholders for the period by the weighted average number of common shares outstanding during the period.
Diluted net income (loss) per share is computed by dividing the net income (loss) for the period by the weighted average number of common shares outstanding during the period, and in the periods they are dilutive, common equivalent shares for
outstanding stock options and warrants computed using the treasury stock method. The weighted average common shares outstanding during the period does not include those shares issued pursuant to the exercise of stock options prior to vesting. In
loss periods, common stock equivalents are excluded from the computation of diluted net loss per share as their effect would be anti-dilutive.



Short-Term Investments



We invest excess cash in highly liquid debt instruments of financial institutions and corporations with strong credit ratings and in United States
government obligations. We have established guidelines relative to diversification and maturities that maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates.



We have evaluated our investments in accordance with the
provisions of SFAS No. 115, Accounting for Certain Investments in Debt and Equity Securities, and we have determined that all of our investment securities are properly classified as available-for-sale. Based on our intent,
investment policies and our ability to liquidate debt securities, we classified such short-term investment securities within current assets. Available-for-sale securities are carried at fair value, with unrealized gains and losses included in
accumulated other comprehensive loss within stockholders equity. The amortized cost basis of debt securities is periodically adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization is included as a
component of interest income (expense). The amortized cost basis of securities sold is based on the specific identification method and all such realized gains and losses are recorded as a component within other income (expense), net.



We review the carrying values of our investments and write down investments
to their estimated fair value by a charge to operations when we determine the decline in value of an investment is considered to be other than temporary. The cost of investments sold is based on the average cost method and is recorded on the
settlement date.



At June 30, 2005, the excess of carrying cost
over the fair value of our short-term investments that are below carrying cost is immaterial and considered to be temporary.



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Segment Information



SFAS No. 131, Disclosures about Segments of an Enterprise and Related Information, establishes standards
for reporting information on operating segments in interim and annual financial statements. We operate in one segment, which is the business of development, manufacturing and commercialization of advanced diagnostic products. Our chief operating
decision-makers review our operating results on an aggregate basis and manage our operations as a single operating segment.



Revenue Recognition



Product revenue is generated by the sale of commercial products and services under various sales programs to the end user and through distribution
channels. The Securities and Exchange Commission (SEC) Staff Accounting Bulletin (SAB) No. 104, provides guidance on the recognition, presentation, and disclosure of revenue in financial statements. SAB No. 104 establishes
the SECs view that it is not appropriate to recognize revenue until all of the following criteria are met: persuasive evidence of an arrangement exists; delivery has occurred or services have been rendered; the sellers price to the buyer
is fixed or determinable; collectibility is reasonably assured, and requires that both title and the risks and rewards of ownership be transferred to the buyer before revenue can be recognized. The Emerging Issues Task Force (EITF) Issue
No. 00-21, Accounting for Revenue Arrangements with Multiple Deliverables addresses the determination of whether an arrangement involving more than one deliverable contains more than one unit of accounting and how the
arrangements consideration should be measured and allocated to the separate units of accounting. We believe that our revenue recognition policies are in compliance with SAB 104 and EITF Issue No. 00-21.



Product sales



We sell NanoChip Molecular Biology Workstations (NanoChip
Systems) and related consumables including NanoChip Cartridges, and Analyte-Specific Reagents (ASRs), real time PCR reagent products, real time ASRs and point-of-care diagnostic tests (diagnostic tests) to end users and
distributors in the research and clinical diagnostic fields.



Revenue from product sales that require no ongoing obligations are recognized as revenue when shipped to the customer (f.o.b. shipping point in the United States or Delivery Duty Paid at the customers site in Europe) and title has
passed and collection is reasonably assured. In transactions where a right-of-return exists, revenue is deferred until acceptance has occurred and the period for the right-of-return has lapsed. As of June 30, 2005, we have not entered into any sales
transactions where rights-of-return exist.



We sell NanoChip Systems either as
(i) direct sales or (ii) reagent rental/cost per test agreements.



(i) Direct sales



Revenue from the direct sales of
NanoChip Systems and related consumables to an end user or a distributor is recognized following receipt of a purchase order, shipment of the product and when title has passed. In transactions where a right-of-return exists, revenue is deferred
until acceptance has occurred and the period for the right-of-return has lapsed. The cost of sales related to the system and consumables is recorded in the period in which the corresponding revenue is recognized.



We provide product warranty coverage for NanoChip® Systems. The
NanoChip® Systems warranty periods are generally for one year under direct sales and over the period of the contract for a cost per test agreement. NanoChip® Systems sold to distributors are typically sold without warranty
coverage. The fair value of the warranty is recorded as deferred revenue. The revenue is recognized ratably over the warranty period. The fair value of the warranty is determined by the renewal price for a maintenance contract on similar equipment
and is consistent for all customers.



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Workstations sold to distributors are sold outright with title transferring at point of shipment (f.o.b.
shipping point in the United States or Delivery Duty Paid at the customers site in Europe).



(ii) Reagent rental/cost per test agreements



Revenue from fee per test agreements results when a NanoChip System is provided to a customer in return for the customer paying a premium on consumable
products over a contractual number of years. When the fee per test agreement is consummated, the value of the NanoChip®System is reclassified from inventory to fixed assets and the cost of the system is amortized to the cost of product sales over the period of the contractual arrangement. Revenues and the cost of
product sales for consumables are recognized when they are shipped.



License and royalty fees



We recognize royalty
revenue when the amounts are earned and determinable, which is generally when the cash payment is received. We are able to recognize minimum required payments on an accrual basis, as they are determinable under contract. Royalty payments that are
based on product sales by the licensees are generally not finalized until the licensee has completed their internal computations of the royalties due and/or remitted their cash payment.



We will recognize revenue tied to third party sales on an accrual basis if information is available to enable us to estimate
the royalty due to us. However, we could experience materially different revenues and results of operations when we receive actual royalty reports and the related cash payments.



In certain situations we may not be able to receive information on licensee product sales on a timely basis that will allow
us to reasonably estimate the amount of royalty revenue to be recognized in the quarter the third party sales took place. We will not recognize this royalty revenue until we are able to ensure that we have reliable information, which may be in a
subsequent period. Therefore, we could experience materially different revenues from quarter to quarter depending on the timing of receipt of third party reports or cash payments.



Sponsored research, contract and grants revenue



We earn revenue for performing tasks under research agreements with both commercial enterprises and governmental agencies.
Sponsored research and contract and grants revenue is generally recorded as the costs and expenses to perform the research are incurred. Continuation of certain sponsored research and contracts and grants are dependent upon our achievement of
specific contractual milestones. Milestone payments are recognized as revenue upon meeting the following criteria: i) we have achieved a specified milestone and have earned the milestone payment, ii) the milestone is substantive in nature and the
achievement of the milestone was not reasonably assured at the inception of the agreement, iii) the fees are non-refundable, and iv) the collection of the payment is reasonably assured. In circumstances where funding is provided on a contractually
scheduled basis, revenue is recorded ratably over the term of the arrangement. Payments received in advance are recorded as deferred revenue until the expenses are incurred. Any payments received prior to satisfying our revenue recognition criteria
are recorded as deferred revenue in the balance sheet.



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Recent Accounting Pronouncements



In November 2004, the FASB issued SFAS No. 151, Inventory Costs
 An Amendment of ARB No. 43, Chapter 4. FAS No. 151 clarifies that abnormal amounts of idle facility expense, freight, handling costs and spoilage should be expensed as incurred and not included in overhead. Further, FAS 151 requires
that the allocation of fixed and production facilities overhead to conversion costs should be based on normal capacity of the production facilities. The provisions in FAS 151 are effective for inventory costs incurred during fiscal years beginning
after June 15, 2005. We do not believe that the adoption of FAS 151 will have a significant effect on our financial statements.



In March 2005, the Security and Exchange Commission (SEC) released Staff Accounting Bulletin (SAB) No. 107, Share-Based Payment
(SAB 107). SAB 107 provides the SEC staff position regarding the application of SFAS No. 123R. SAB 107 contains interpretive guidance related to the interaction between SFAS No. 123R and certain SEC rules and regulations, as well as provides
the Staffs views regarding the valuation of share-based payment arrangements for public companies. SAB 107 also highlights the importance of disclosures made related to the accounting for share-based payment transactions. We are currently
reviewing the effect of SAB 107 on our condensed consolidated financial statements as we prepares to adopt SFAS 123R.



In December 2004, the FASB issued SFAS No. 123, Share-Based Payment, that addresses the accounting for share-based payment transactions
in which an enterprise receives employee services in exchange for either equity instruments of the enterprise or liabilities that are based on the fair value of the enterprises equity instruments or that may be settled by the issuance of such
equity instruments. The statement eliminates the ability to account for share-based compensation transactions, as we do currently, using the intrinsic value method as prescribed by Accounting Principles Board, or APB, Opinion No. 25,
Accounting for Stock Issued to Employees, and generally requires that such transactions be accounted for using a fair-value-based method and recognized as expenses in our consolidated statement of operations. The statement
requires companies to assess the most appropriate model to calculate the value of the options. We currently use the Black-Scholes option pricing model to value options and we are currently assessing which model we may use in the future under the new
statement and we may deem an alternative model to be the most appropriate. The use of a different model to value options may result in a different fair value than the use of the Black-Scholes option pricing model. In addition, there are a number of
other requirements under the new standard that would result in a different accounting treatment than is currently required. These differences include, but are not limited to, the accounting for the tax benefit on employee stock options and for stock
issued under our employee stock purchase plan, and the presentation of tax benefits within the consolidated statement of cash flows. In addition, we will also be required to determine the transition method to be used at the date of adoption. The
transition methods include modified prospective and modified retroactive adoption options. The modified prospective method requires that compensation expense be recorded for all unvested stock options and restricted stock at the beginning of the
first quarter of adoption of FAS 123R, while the retroactive method would record compensation expense for all unvested stock options and restricted stock beginning with the first period restated.



In April 2005, the SEC announced the adoption of Release No. 33-8568,
Amendment to Rule 4-01(a) of Regulation S-X Regarding the Compliance Date for Statement of Financial Standard No. 123 (Revised 2004), Share-Based Payment, that amends the effective date of FAS 123R to January 1, 2006 for fiscal
year end companies such as ours. The adoption of FAS 123R will have a significant impact on our consolidated financial statements in the first quarter of 2006 as we will be required to expense the fair value of the stock option grants and stock
purchases under our employee stock purchase plan rather than disclose the impact on the consolidated net results of operations within the footnotes, as is our current practice.



2. Stock-Based Compensation



We apply the intrinsic value-based method of accounting as prescribed by APB Opinion No. 25, Accounting for Stock Issued to Employees,
and related interpretations including FASB Interpretation No. 44, Accounting for Certain Transactions involving Stock Compensation an interpretation of APB Opinion No. 25 to account for our stock option plans. Under the intrinsic
value method, compensation expense is measured on the date of grant only if the then current market price of the underlying stock exceeded the exercise price and is recorded on a straight-line basis over the applicable vesting period. SFAS No. 123,
Accounting for Stock-Based Compensation, established accounting and disclosure requirements using a fair value-based method of accounting for stock-based employee compensation plans. As allowed by SFAS No. 123, we have elected to
continue to apply the intrinsic value-based



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method of accounting described above, and have adopted the disclosure requirements of SFAS No. 123, as amended by SFAS No. 148, Accounting for
Stock-Based CompensationTransition and Disclosure.



The pro forma effects of stock-based compensation on net loss and net loss per common share have been estimated at the date of grant using the Black-Scholes option-pricing model. The Black-Scholes option-pricing model was developed for use
in estimating the fair value of traded options that have no restrictions and are fully transferable and negotiable in a free trading market. Black-Scholes does not consider the employment, transfer or vesting restrictions that are inherent in our
employee options. The use of an option valuation model, as required by SFAS No. 123, includes highly subjective assumptions based on long-term predictions, including the expected stock price volatility and average life of each option grant. Because
our employee stock options have characteristics significantly different from those of freely traded options, and because the assumptions underlying the Black-Scholes model involve substantial judgment, our estimate of the fair value of our awarded
stock options may differ materially from the ultimate value realized by the recipient employee.



The weighted average estimated fair values of stock options granted during the three and six months ended June 30, 2005 was $3.48 and $4.54 per share,
respectively and the three and six months ended June 30, 2004 was $6.65 and $6.92 per share. Fair value under SFAS No. 123 is determined using the Black-Scholes option-pricing model with the following assumptions:



|              |  |                             |   |  |                           |   |  |         |   |  |         |  
|------------- |  | --------------------------- | - |  | ------------------------- | - |  | ------- | - |  | ------- | -
|              |  | Three months ended June 30, |   |  | Six months ended June 30, |  
|              |  | 2005                        |   |  | 2004                      |   |  | 2005    |   |  | 2004    |  
|Expected term |  | 5 years                     |   |  | 5 years                   |   |  | 5 years |   |  | 5 years |  
|Interest rate |  | 4.0                         | % |  | 3.2                       | % |  | 4.0     | % |  | 3.2     | %
|Volatility    |  | 80                          | % |  | 110                       | % |  | 69      | % |  | 110     | %
|Dividends     |  |                            |   |  |                          |   |  |        |   |  |        |  



Had compensation
expense been recorded based on the fair value method prescribed by SFAS No. 123, our pro forma net loss, and pro forma loss per share would have been as follows:



|                                                                                                                                         |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|---------------------------------------------------------------------------------------------------------------------------------------- |  | --------------------------- | ------- | - | ------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                                                                                                                                         |  | Three months ended June 30, |         |   | Six months ended June 30, |  
|                                                                                                                                         |  | 2005                        |         |   | 2004                      |   |         | 2005 |  |   | 2004    |  
|Net loss:                                                                                                                                |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|As reported                                                                                                                              |  | $                           | (9,721  | ) |                           | $ | (12,889 | )    |  | $ | (17,978 | ) |  | $ | (18,264 | )
|Add: Stock based employee compensation expense included in reported net loss, net of related tax effects                                 |  |                             |        |   |                           |   |        |      |  |   |        |   |  |   |        |  
|Deduct: Total stock based employee compensation expense determined under Black-Scholes method for all awards, net of related tax
effects |  |                             | (1,382  | ) |                           |   | (1,238  | )    |  |   | (2,823  | ) |  |   | (2,182  | )
|                                                                                                                                         |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Pro forma                                                                                                                                |  | $                           | (11,103 | ) |                           | $ | (14,127 | )    |  | $ | (20,801 | ) |  | $ | (20,446 | )
|                                                                                                                                         |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Basic and diluted loss per share:                                                                                                        |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|Basic and diluted loss per common share:                                                                                                 |  |                             |         |   |                           |   |         |      |  |   |         |   |  |   |         |  
|As reported                                                                                                                              |  | $                           | (0.20   | ) |                           | $ | (0.39   | )    |  | $ | (0.38   | ) |  | $ | (0.61   | )
|Pro forma                                                                                                                                |  | $                           | (0.23   | ) |                           | $ | (0.43   | )    |  | $ | (0.44   | ) |  | $ | (0.68   | )



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The amounts disclosed above are not necessarily indicative of the amounts that will be expensed upon
adoption of FAS No. 123R Share-Based Payment. Compensation expense calculated under FAS No. 123R may differ from amounts currently disclosed within these footnotes based on changes in the fair value of our common stock, changes in
the number of options granted or the terms of such options, the treatment of tax benefits and changes in interest rates or other factors. In addition, upon adoption of FAS No. 123R, we may choose to use a different valuation model to value the
compensation expense associated with employee stock options and stock purchases under our employee stock purchase plan, as discussed under Recent Accounting Pronouncements.



Periodically, we issue options to non-employees. The options are recorded at their fair values (using the Black-Scholes
model) as determined in accordance with SFAS No. 123 and periodically re-measured in accordance with EITF 96-18 Accounting for Equity Instruments That Are Issued To Other Than Employees for Acquiring, or in Conjunction with Selling, Goods,
or Services and are recognized over the related service period.



3. Business Combination



On April 21, 2004, we
acquired all the outstanding common stock of SynX Pharma Inc. (SynX) in an all-stock transaction by way of a court-approved plan of arrangement. Based in Toronto, Canada, SynX leverages proteomic and biomarker research to develop a line
of point-of-care diagnostic tests. Through this acquisition we gained access to SynXs point-of-care technologies. Consistent with our strategy to broaden our product lines we gained access to a world wide license to the congestive heart
failure (CHF) marker NT-proBNP to develop a test for the point-of-care market. Also, by combining our companies, we were able to consolidate operational and administrative functions. These factors were among those that contributed to a purchase
price resulting in the recognition of $10.5 million in goodwill.



The total purchase price of approximately $16.0 million was a result of us issuing SynX stockholders 0.123 shares of our common stock for each share of their common stock. The market value of our common stock on April 21, 2004 of $7.60 was
used to determine the fair value of the shares exchanged. SynX debenture holders received our common stock based upon (i) the aggregate principal amount plus accrued and unpaid interest owed on the debenture (ii) the currency exchange rate on April
21, 2004, and (iii) the average best bid and best ask price for our stock on April 21, 2004. SynXs stockholders and debenture holders received approximately 1.6 million shares of our common stock or 5% of our common stock immediately following
the acquisition. We also assumed all of SynXs options and warrants outstanding at the effective date of the merger and they are now exercisable for 0.123 of our common stock. The exercise prices of the options and warrants were adjusted
accordingly. The fair value of assumed options and warrants were determined using the Black-Scholes option pricing model using a stock price of $7.63 and the following assumptions:



|              |  |         |   |  |          |  
|------------- |  | ------- | - |  | -------- | -
|              |  | Options |   |  | Warrants |  
|Expected term |  | 2 years |   |  | 2 years  |  
|Interest rate |  | 1.47    | % |  | 1.47     | %
|Volatility    |  | 90      | % |  | 90       | %
|Dividends     |  |        |   |  |         |  



The results of
operations of SynX have been included in the accompanying consolidated financial statements from the date of acquisition. The actual cost of the acquisition has been recorded as follows (in thousands):



|                                           |  |   |       
|------------------------------------------ |  | - | ------
|Nanogen common stock exchanged             |  | $ | 12,493
|Fair value of options and warrants assumed |  |   | 1,237 
|Direct transaction costs                   |  |   | 2,279 
|                                           |  |   |       
|Total purchase price                       |  | $ | 16,009
|                                           |  |   |       



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The allocation of the above purchase price is as follows (in thousands):



|                                              |  |   |        |  
|--------------------------------------------- |  | - | ------ | -
|Tangible assets acquired                      |  | $ | 5,818  |  
|In Process Research & Development             |  |   |        |  
|Congestive Heart Failure Diagnostic           |  |   | 2,677  |  
|Traumatic Brain Injury Diagnostic             |  |   | 504    |  
|Diabetes Diagnostic                           |  |   | 577    |  
|Intangible assets not subject to amortization |  |   | 294    |  
|Goodwill                                      |  |   | 10,452 |  
|                                              |  |   |        |  
|Total assets acquired                         |  |   | 20,322 |  
|Liabilities assumed                           |  |   | (4,313 | )
|                                              |  |   |        |  
|Net assets acquired                           |  | $ | 16,009 |  
|                                              |  |   |        |  



We used an independent
third party to perform a valuation analysis of our purchased intangibles and in-process research and development (IPR&D) and we reviewed their assumptions, calculations and conclusions for reasonableness. We primarily used the income
approach to value these assets based on the assumption that the value of an asset can be determined by estimating the present value of the expected cash flows generated by an investment in that asset. Based on the valuation we allocated
$294,000 to trade names that is not subject to amortization and allocated $3.8 million of the purchase price to IPR&D related to congestive heart failure (CHF), traumatic brain injury (TBI) and diabetes diagnostic products. The research and
development underlining these applications was unique to our current research and development projects involving microarray technology. The IPR&D asset was expensed at the date of acquisition in accordance with FASB Interpretation No. 4
Applicability of FASB Statement No.2 to Business Combinations Accounted for by the Purchase Method. The value assigned to acquired IPR&D was determined by estimating the expenses required to develop the acquired IPR&D into
commercially viable products, estimating the resulting cash flows from the products and discounting the net cash flows to their present values and to reflect the risks associated with the development of the products. The discount rates used ranged
from 30% to 40% reflecting the inherent risks involved in launching complex diagnostic products. The calculations of value were adjusted to reflect the creation efforts which were made prior to the close of the acquisition. The IPR&D expense
resulting from these calculations allocated $2.7 million in fair value to CHF, $504,000 in fair value to TBI and $577,000 in fair value for diabetes diagnostics. At the time of the acquisition, the CHF product was the closest to completion, and is
currently expected to be launched in the second half of 2005. The TBI and diabetes products are still in the early stages of the development cycle. The amount assigned to acquired in-process research and development was recorded as an expense in the
statement of operations for the year ended December 31, 2004. Approximately $10.5 million has been allocated to goodwill which is not subject to amortization. Goodwill represents the excess purchase price over the fair value of the net tangible and
intangible assets acquired, and is not deductible for tax purposes.



In addition, as part of the acquisition, we acquired certain real estate commitments approximating current market lease rates for comparable properties to SynX averaging $917,000 per year for a total of approximately $6.6 million on a
building lease through 2012.



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Pro Forma Information



The following unaudited pro forma information assumes that the April 21, 2004 and December 16, 2004 acquisitions of SynX and
Epoch Bioscience, Inc., respective, occurred on January 1, 2004. The unaudited pro forma results have been prepared for comparative purposes only and do not purport to be indicative of the results of operations that would have actually resulted had
the acquisition been in effect as of the periods indicated, or of future results of operations. The unaudited pro forma results for the three and six months ended June 30, 2004, are as follows (in thousands, except per share data):



|                                   |  |                                             |         |   |                                           |   |         |  
|---------------------------------- |  | ------------------------------------------- | ------- | - | ----------------------------------------- | - | ------- | -
|                                   |  | Three months ended June 30, 2004(unaudited) |         |   | Six months ended June 30, 2004(unaudited) |  
|Revenues                           |  | $                                           | 3,084   |   |                                           | $ | 7,431   |  
|Net loss(1)                        |  | $                                           | (14,388 | ) |                                           | $ | (21,643 | )
|Loss per share (basic and diluted) |  | $                                           | (0.31   | ) |                                           | $ | (0.49   | )



|(1) | Includes $3.8 million for the write-off of IPR&D costs for the three and six months ended June 30, 2004.
|--- | --------------------------------------------------------------------------------------------------------



4. Warranty



Our products are generally sold without a warranty. However, we provide product warranty coverage for NanoChip® Systems. The NanoChip® Systems warranty periods are generally for one year under direct sales
and over the period of the contract for a cost per test agreement. NanoChip® Systems sold to distributors are typically sold without warranty coverage.



We are required to estimate our warranty obligations incurred by reference to historical product warranty return rates, material usage. The estimated
warranty obligation is recognized at the time of sale and amortized over the service period. Should actual costs differ from our estimated warranty obligations, revisions to the estimated warranty liability would be required. In addition, we have
costs associated with an in-house service function that is charged to cost of products sales in the period it is incurred.



Changes in our warranty liability were as follows (in thousands):



|                 |  |                       |     |                                         |   |                           |  |   |                     |   |  |   |    
|---------------- |  | --------------------- | --- | --------------------------------------- | - | ------------------------- |  | - | ------------------- | - |  | - | ---
|                 |  | Balance at January 1, |     | Warranty additions (charges to expense) |   | Cost for warranty service |  |   | Balance at June 30,
|2005:            |  |                       |     |                                         |   |                           |  |   |                     |   |  |   |    
|Warranty reserve |  | $                     | 17  |                                         | $ | 25                        |  | $ | (20                 | ) |  | $ | 22 
|                 |  |                       |     |                                         |   |                           |  |   |                     |   |  |   |    
|2004:            |  |                       |     |                                         |   |                           |  |   |                     |   |  |   |    
|Warranty reserve |  | $                     | 159 |                                         | $ | 54                        |  | $ | (108                | ) |  | $ | 105
|                 |  |                       |     |                                         |   |                           |  |   |                     |   |  |   |    



5. Comprehensive Loss



SFAS No. 130, Reporting Comprehensive
Income, requires us to report, in addition to net loss, comprehensive loss and its components. A summary is as follows (in thousands):



|                                                       |  |                             |        |   |                          |   |         |      |  |   |         |   |  |   |         |  
|------------------------------------------------------ |  | --------------------------- | ------ | - | ------------------------ | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                                                       |  | Three months ended June 30, |        |   | Six month ended June 30, |  
|                                                       |  | 2005                        |        |   | 2004                     |   |         | 2005 |  |   | 2004    |  
|Comprehensive loss:                                    |  |                             |        |   |                          |   |         |      |  |   |         |   |  |   |         |  
|Net unrealized gain / (loss) on short-term investments |  | $                           | 21     |   |                          | $ | (141    | )    |  | $ | 35      |   |  | $ | (145    | )
|Foreign currency translation adjustment                |  |                             | (2     | ) |                          |   | (96     | )    |  |   | 24      |   |  |   | (1,217  | )
|Net loss                                               |  |                             | (9,721 | ) |                          |   | (12,889 | )    |  |   | (17,978 | ) |  |   | (18,264 | )
|                                                       |  |                             |        |   |                          |   |         |      |  |   |         |   |  |   |         |  
|Comprehensive loss                                     |  | $                           | (9,702 | ) |                          | $ | (13,126 | )    |  | $ | (17,919 | ) |  | $ | (19,626 | )
|                                                       |  |                             |        |   |                          |   |         |      |  |   |         |   |  |   |         |  



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6. Common Stock Warrant Liability



As a result of our acquisition of Epoch Bioscience, we assumed warrants representing 381,317 shares of our common stock with
an exercise price of $8.32 per share with an expiration date in early 2009. These warrants contain a provision whereby, under certain circumstances pertaining to a change of control of Nanogen, the warrant holders have the right to redeem their
warrant for cash equal to the estimated fair value of the warrant using the Black Scholes method. The volatility factor to be used in this calculation, is limited to the lesser of 50% or our actual historical volatility. As a result, and in
accordance with EITF 00-19, Accounting for Derivative Financial Instruments Indexed To, and Potentially Settled In a Companys Own Stock, the fair value of the cash redemption portion of the warrants, measured in accordance
with the terms of the warrant agreements, is recorded as a current liability on our balance sheet. The decrease in the market price of our common stock and other changes in the valuation assumptions from December 31, 2004 to June 30, 2005 resulted
in a decrease in the value of the warrants between these dates of $837,000. Therefore, we reported an other income of $837,000 as a warrant valuation adjustment in our statement of operations for the six months ended June 30, 2005.



The assumptions used in the Black-Scholes pricing model were:



|              |  |               |   |  |                   |  
|------------- |  | ------------- | - |  | ----------------- | -
|              |  | June 30, 2005 |   |  | December 31, 2004 |  
|Expected term |  | 3.7 years     |   |  | 4.2 years         |  
|Interest rate |  | 4.0           | % |  | 3.6               | %
|Volatility    |  | 50            | % |  | 50                | %
|Dividends     |  |              |   |  |                  |  



Until the warrants are
exercised or expire, the valuation of the warrants and the corresponding liability will be re-measured quarterly and the financial statements will reflect a non-cash valuation adjustment based on the change in the calculated value of the warrants
during each reporting period.



7. Commitments and Contingencies



Long-term debt obligations



In March 2005, we extended our December 2003 equipment funding agreement to
provide financing of up to $965,000 for equipment purchases through February 2006.



In March 2005, we issued a promissory note under this agreement in an aggregate principal amount of approximately $219,000. This note is secured by equipment with a cost of $219,000. This note bears interest at 10.86%
per annum with principal and interest due in monthly payments of approximately $7,000 for 36 months.



In June 2005, we issued another promissory note under this agreement in an aggregate principal amount of approximately $261,000. This note is secured by
equipment with a cost of $261,000. This



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note bears interest at 10.56% per annum with principal and interest due in monthly payments of approximately $8,500 for 36 months.



As of June 30, 2005, the future contractual principal payments on all of our
promissory notes are as follows (in thousands):



|                                 |  |   |      
|-------------------------------- |  | - | -----
|For the years ended December
31, |  |  
|2005 (Six months)                |  | $ | 518  
|2006                             |  |   | 595  
|2007                             |  |   | 357  
|2008                             |  |   | 62   
|                                 |  |   |      
|Total                            |  | $ | 1,532
|                                 |  |   |      



The interest expense
for the three and six months ended June 30, 2005 was $28,000 and $62,000, respectively.



Purchase Commitment



In
June 2003, we committed to a manufacturing agreement with Hitachi, Ltd. (Hitachi) that requires us to provide annual purchase commitments to Hitachi for the second-generation workstation, the NanoChip®400. As of June 30, 2005, we had commitments to purchase $1.3 million of the NanoChip®400 instruments from Hitachi through September 2005. In July 2005, we made another commitment to purchase an additional
$400,000 of NanoChip® 400 instruments through
October 2005.



Restricted Cash



We have pledged under a security agreement long-term certificates of deposit
and a letter of credit, in lieu of cash deposits, to secure operating lease obligations which are reflected as restricted cash in the accompanying consolidated balance sheet. We had approximately $1.4 million in long-term certificates of deposit and
a letter of credit at June 30, 2005 and December 31, 2004.



Litigation



We may be subject to potential
liabilities under various claims and legal actions that may be asserted. These matters have arisen in the ordinary course and conduct of our business, as well as through acquisitions, and some may be covered, at least partly, by insurance. Claim
estimates that are probable and can be reasonably estimated are reflected as liabilities. The ultimate resolution of these matters is subject to many uncertainties. It is reasonably possible that some of the matters, which are pending or may be
asserted, could be decided unfavorably to us. Although the amount of liability at June 30, 2005, with respect to these matters cannot be ascertained, we believe that any resulting liability should not materially affect our consolidated financial
position, results of operation or cash flows.



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8. Financial Statement Details



Receivables



Receivables are comprised of the following (in thousands) as of:



|                                |  |               |       |   |                   |   |       |  
|------------------------------- |  | ------------- | ----- | - | ----------------- | - | ----- | -
|                                |  | June 30, 2005 |       |   | December 31, 2004 |  
|                                |  | (Unaudited)   |       |   |                   |  
|Product                         |  | $             | 755   |   |                   | $ | 721   |  
|License fees                    |  |               | 1,544 |   |                   |   | 1,375 |  
|Contract and grant              |  |               | 105   |   |                   |   | 103   |  
|                                |  |               |       |   |                   |   |       |  
|                                |  |               | 2,404 |   |                   |   | 2,199 |  
|Allowance for doubtful accounts |  |               | (70   | ) |                   |   | (176  | )
|                                |  |               |       |   |                   |   |       |  
|                                |  | $             | 2,334 |   |                   | $ | 2,023 |  
|                                |  |               |       |   |                   |   |       |  



Inventories



Inventories include the cost of material, labor and overhead, and are stated
at the lower of average cost, determined on the first-in, first-out method, or market. We periodically evaluate our on-hand inventories and make appropriate provisions for any inventories deemed excess or obsolete.



Inventories consist of the following (in thousands) as of:



|                                                |  |               |        |   |                   |   |        |  
|----------------------------------------------- |  | ------------- | ------ | - | ----------------- | - | ------ | -
|                                                |  | June 30, 2005 |        |   | December 31, 2004 |  
|                                                |  | (Unaudited)   |        |   |                   |  
|Raw materials                                   |  | $             | 3,534  |   |                   | $ | 1,924  |  
|Work in process (materials, labor and overhead) |  |               | 1,800  |   |                   |   | 2,398  |  
|Finished goods (materials, labor and overhead)  |  |               | 2,942  |   |                   |   | 3,282  |  
|                                                |  |               |        |   |                   |   |        |  
|                                                |  |               | 8,276  |   |                   |   | 7,604  |  
|Reserve for excess and obsolescence             |  |               | (6,002 | ) |                   |   | (5,860 | )
|                                                |  |               |        |   |                   |   |        |  
|                                                |  | $             | 2,274  |   |                   | $ | 1,744  |  
|                                                |  |               |        |   |                   |   |        |  



During the three
months ended June 30, 2004, we increased our reserves related to our inventory NanoChip® Molecular Biology Workstation and accessory items by $1.5 million. This charge is reflected as additional cost of sales during the period.



Property and Equipment



Property and equipment consist of the following (in thousands) as of:



|                                              |  |                                              |  |               |         |   |                   |   |         |  
|--------------------------------------------- |  | -------------------------------------------- |  | ------------- | ------- | - | ----------------- | - | ------- | -
|                                              |  | Estimated Useful Life (years)                |  | June 30, 2005 |         |   | December 31, 2004 |  
|                                              |  | (Unaudited)                                  | 
|Scientific equipment                          |  | 5                                            |  | $             | 10,402  |   |                   | $ | 9,338   |  
|Office furniture and equipment                |  | 3  5                                        |  |               | 4,335   |   |                   |   | 4,061   |  
|Manufacturing equipment                       |  | 5                                            |  |               | 1,205   |   |                   |   | 1,858   |  
|Leasehold improvements                        |  | (lesser of leaseterm or life ofimprovements) |  |               | 7,324   |   |                   |   | 7,247   |  
|                                              |  |                                              |  |               |         |   |                   |   |         |  
|                                              |  |                                              |  |               | 23,266  |   |                   |   | 22,504  |  
|Less accumulated depreciation andamortization |  |                                              |  |               | (15,165 | ) |                   |   | (14,004 | )
|                                              |  |                                              |  |               |         |   |                   |   |         |  
|                                              |  |                                              |  | $             | 8,101   |   |                   | $ | 8,500   |  
|                                              |  |                                              |  |               |         |   |                   |   |         |  



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For the three and six months ended June 30, 2005, depreciation and amortization expense related to
property and equipment totaled $848,000 and $1,644,000, respectively.



Acquired Technology Rights



Acquired
technology rights consist of the following (in thousands) as of:



|                                               |  |                              |  |                          |        |  |                       |        |                          |  |   |        |  |   |        |  
|---------------------------------------------- |  | ---------------------------- |  | ------------------------ | ------ |  | --------------------- | ------ | ------------------------ |  | - | ------ |  | - | ------ | -
|                                               |  | Estimated Useful Life(years) |  | June 30, 2005            |        |  | December 31, 2004     |       
|                                               |  | Gross Carrying Amount        |  | Accumulated amortization |        |  | Gross Carrying Amount |        | Accumulated amortization | 
|                                               |  |                              |  | (Unaudited)              |        |  |                       |        |                          | 
|In-licensed technology rights                  |  | 3 10                        |  | $                        | 6,137  |  | $                     | (5,369 | )                        |  | $ | 6,111  |  | $ | (4,897 | )
|Customer contracts acquired                    |  | 7                            |  |                          | 1,210  |  |                       | (87    | )                        |  |   | 1,210  |  |   |       |  
|Completed technology acquired                  |  | 3 10                        |  |                          | 9,395  |  |                       | (699   | )                        |  |   | 9,395  |  |   |       |  
|                                               |  |                              |  |                          |        |  |                       |        |                          |  |   |        |  |   |        |  
|Total acquired technology rights               |  |                              |  | $                        | 16,742 |  | $                     | (6,155 | )                        |  | $ | 16,716 |  | $ | (4,897 | )
|                                               |  |                              |  |                          |        |  |                       |        |                          |  |   |        |  |   |        |  
|Intangible assets not subject to amortization: |  |                              |  |                          |        |  |                       |        |                          |  |   |        |  |   |        |  
|Trademarks & trade names                       |  |                              |  | $                        | 294    |  |                       |        |                          |  | $ | 294    |  |   |        |  
|                                               |  |                              |  |                          |        |  |                       |        |                          |  |   |        |  |   |        |  



The amortization
expense of intangibles for the three and six months ended June 30, 2005 was $565,000 and $1,257,000, respectively.



Estimated amortization of intangibles (in thousands) for the years ended:



|                  |  |   |       
|----------------- |  | - | ------
|2005 (Six months) |  | $ | 872   
|2006              |  |   | 1,695 
|2007              |  |   | 1,688 
|2008              |  |   | 1,538 
|2009              |  |   | 1,488 
|Thereafter        |  |   | 3,306 
|                  |  |   |       
|                  |  | $ | 10,587
|                  |  |   |       



Accounts Payable
and Accrued Liabilities



Accounts payable and accrued
liabilities are comprised of the following (in thousands) as of:



|                                  |  |               |       |                   |   |      
|--------------------------------- |  | ------------- | ----- | ----------------- | - | -----
|                                  |  | June 30, 2005 |       | December 31, 2004
|                                  |  | (Unaudited)   |       |                  
|Accounts payable                  |  | $             | 2,139 |                   | $ | 918  
|Accrued compensation and benefits |  |               | 2,208 |                   |   | 2,443
|Accrued legal fees                |  |               | 711   |                   |   | 944  
|Accrued acquisition costs         |  |               |      |                   |   | 2,329
|Accrued warrant rescission        |  |               |      |                   |   | 598  
|Other                             |  |               | 2,595 |                   |   | 2,691
|                                  |  |               |       |                   |   |      
|                                  |  | $             | 7,653 |                   | $ | 9,923
|                                  |  |               |       |                   |   |      



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9. Related Party Transaction



In June 2005, we signed a letter of agreement with FasTraQ, Inc. (FasTraQ) for the development of certain future
product. Our Chief Executive Officer and Chairman of the Board, Mr. Birndorf, is a director and an investor in FasTraQ. Mr. Birndorf abstained from the discussions and votes regarding FasTraQ at the meetings of our Board of Directors. We made an
initial non-refundable payment of $500,000 to FasTraQ to begin the initial development of this product. We will expense the $500,000 payment over approximately six months, which is the estimated time required to perform the development.



10. Subsequent events



On July 5, 2005, we invested approximately $350,000 into the equity of a
development stage research and development company called Pharmacogenetics Diagnostic Laboratory, LLC (PGx) to provide us access to certain technology related to pharmacogenetics. We will increase our equity investment to approximately
$500,000 if PGx reaches certain agreed upon milestones.



On
July 20, 2005, we invested approximately $1.5 million into the equity of another development stage research and development company called Jurilab LTD. (Jurilab) to provide us access to technology related to certain gene markers. We have
the obligation to increase our equity investment by approximately $1.5 million by January 31, 2006 if Jurilab meets certain conditions within our investment agreement. In addition, we have the option to purchase the entire company at not-to-exceed
prices through December 31, 2007.



|Item 2. | Managements Discussion and Analysis of Financial Condition and Results of Operations
|------- | -------------------------------------------------------------------------------------



Forward Looking Statement



This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 which provides a
safe harbor for these types of statements. To the extent statements in this report involve, without limitation, our expectations for growth, estimates of future revenue, expenses, profit, cash flow, balance sheet items or any other
guidance on future periods, these statements are forward-looking statements. Forward-looking statements are not guarantees of performance. They involve known and unknown risks, uncertainties and assumptions that may cause actual results, levels of
activity, performance or achievements to differ materially from any results, level of activity, performance or achievements expressed or implied by any forward-looking statement. These risks and uncertainties include those included herein under the
caption Factors That May Affect Results below. We assume no obligation to update any forward-looking statements. Results of Operations should be read in conjunction with the Managements Discussion and Analysis of Financial
Condition and Results of Operations, Consolidated Financial Statements and Notes thereto for the year ended December 31, 2004 in our Annual Report on Form 10-K.



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Summary:



During the six months ended June 30, 2005, the following significant business developments occurred:



| |  |  | Our strategy in 2004 to deliver a broader range of revenue generating products in 2005 for the advance diagnostics market continues as we planned. In the last six months we have
made steady progress towards the introduction of several new products and believe they present opportunities for Nanogen to grow revenues substantially. These new product launches will represent important milestones in the progress of our company
and the implementation of a sustainable, multi-product business model that over time will demonstrate improved financial performance. Our internal testing indicates we continue to be on track to receive the required regulatory approvals necessary to
begin distribution of our point-of-care tests for congestive heart failure (CHF) later this year. The second generation molecular biology workstation system, the NanoChip® 400, is expected to begin shipping later this year. We expect the NanoChip® 400 will begin generating revenue initially from research customers and subsequently
from clinical customers following release of our Analyte Specific Reagents (ASRs). Our clinical laboratory customers could use these ASRs to develop tests for respiratory viral conditions, thrombosis, and for the detection of mutations potentially
related to Cystic Fibrosis.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The research, development and administration associated with developing new products and the broadening of our markets continues to require a significant investment and use of cash.
We believe we will continue to use cash and have quarterly net losses for at least the next year until our product offerings gain traction in the market place and generate a return on investment. To ensure that we continue to have the cash required
to fund our operations, in June 2005 we filed a prospectus with the Securities and Exchange Commission for an aggregate public offering up to $60,000,000. We are currently determining the timing and most appropriate type of offering (which may
involve any combination of common stock, preferred stock, debt securities or warrants) that balances our cash requirements with the interest of our stockholders.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | We signed five European distributors for our congestive heart failure (CHF) and myocardial infarction point-of-care tests. When we complete development and receive regulatory
approval for our point-of-care tests, our distribution network will provide access to 28 European nations and an exposure to a potential customer base of over 7,500 hospitals, 4,000 clinical laboratories and almost 11,000 cardiac specialists. Our
European distributors will be responsible for the distribution and marketing of our CHF tests. We did not receive any payments or require purchase commitments from these distributors.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Epoch Bioscience, whose acquisition was completed on December 16, 2004, was integrated into our operations during the first half of this year.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In a subsequent event on July 21, we made an equity investment of approximately $1.5 million in Jurilab, a Finnish company that has assembled a large data base of genetic markers by
studying the genetic patterns of a founder population in East Finland. Uniquely, this data base was constructed over the last twenty years providing novel insights to the correlation of genetic patterns as a prognosticator of disease. Our investment
in Jurilab is an example of our desire to add proprietary content on top of our advanced diagnostic tools and thereby creating unique solutions to evaluate and diagnose disease. We expect to make another equity investment of approximately $1.5
million early next year to help cover their operating expenses. The investment agreement provides us with an option to purchase the entire company over the next several years after we understand the potential of their genetic marker database in
greater detail.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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Our business:



We are headquartered in San Diego, California and were founded on the vision of providing a higher quality of healthcare through advanced medical
diagnostic products. As disease is increasingly understood at a patient-specific level, we provide the tests that will allow physicians or researchers to make informed decisions based on specific proteins or genes specific to the individual patient
or person. Our goal is to become a leader in providing the products that will enable the application of medical care to shift from reactive to proactive through our advanced diagnostic platforms. With this vision, we have developed a product
portfolio and pipeline that renders molecular biology information accessible to researchers and clinicians.



Products:



In
2004, we raised $43.8 million in capital and with that funding we focused on broadening our product portfolio to expand our sources of revenues. With our expanded product portfolio, that includes the microarray platform (e.g. NanoChip®), real-time Analyte Specific Reagents (ASRs) and
anticipated point-of-care platforms, we believe we will have the platform technologies to meet the needs of a broader range of customers within the advanced diagnostic market. Each of these technology platforms provides us greater revenue potential
and the opportunity to increase our critical mass.



Below
illustrates how our platform technologies address the market for advanced molecular diagnostic tools:



|                                                            |  |                                                                                    |  |                                                       |  |                                        |  | 
|----------------------------------------------------------- |  | ---------------------------------------------------------------------------------- |  | ----------------------------------------------------- |  | -------------------------------------- |  | 
|Markets addressed by our product and technologies:         
|Advanced Research (Universities, research facilities, etc.) |  | Clinical Laboratory (CLIA certified central laboratories andresearch laboratories) |  | Point-of-care (Emergency room orurgent care settings)
|                                                            |  |                                                                                    |  |                                                       |  | Point-of-Care Tests (SynX acquisition)
|Real time PCR products (Epoch
acquisition)                  |  |                                                                                    |  |                                                      
|                                                            |  | Microarray instrument platforms (Molecular
Biology Workstation and NanoChip® 400)  |  |                                                      



As illustrated above
we have three categories of advanced diagnostic products: 1) real-time ASRs, 2) microarray instrument platforms and related ASRs consumables, and 3) point-of-care tests.



1) Real-time PCR products



Our real-time PCR products include both custom designed products for the research market and ASRs which are sold to clinical laboratories. These
products are advanced molecular probes that amplify disease specific genetic sequences for analysis or identification. This platform technology provides real-time diagnosis of infectious and genetic diseases in a simple test with rapid turn around.
The customers for this product line are primarily advanced research and clinical laboratories that test for single markers or mutations in genes. An advantage of our real-time PCR products is its platform independence providing us a
broader market and customer base. In addition, we believe these products provide us name recognition and compliment our current sales and marketing efforts with a wider array of solutions for our customers.



2) Microarray instrument platforms and related ASRs



For our customers that require more complex testing than is available with
real-time ASRs, we have developed the Molecular Biology Workstation and its second generation, the NanoChip®400 system, which is expected to be released later this year. These systems are based on our proprietary microarray-based



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or lab on a chip testing technology that allows testing for multiple gene markers or mutations on one test site. Our second generation system
will offer customers a smaller footprint, faster throughput and simpler operating procedures than the current system. We are also developing a series of ASRs for the system which will provide our customers the capability to develop a series of tests
including ones for respiratory viruses and for the genetic mutation associated with cystic fibrosis.



3) Point-of-care



Our point-of-care pipeline consists of highly specific tests for identifying protein markers that play a role in diseases. By identifying these proteins,
doctors can more accurately diagnose and monitor the progress of specific diseases. Our researchers are developing products that focus on congestive heart failure, diagnosis of stroke and traumatic brain injury. We believe our technology will help
to move many of these tests from the clinical reference lab to the point-of-care settings such as the emergency room. We are currently in the final stages of developing a congestive heart failure product, which is expected to be released in the
second half of 2005, which will test for levels of the protein NT-proBNP in the point-of-care setting.



Other sources of revenue:



License fee and royalty income



We own 131 issued U.S. patents as of June 30, 2005. We receive significant royalty payments from Applied Biosystems pursuant to an agreement between Applied Biosystems and Epoch Biosciences. This agreement provides for minimum quarterly
royalties through the third quarter of 2005. Thereafter, we will receive royalty payments based on actual sales which may result in a significant reduction of royalties received. In addition, the contract can be terminated with a 180 day notice,
although we expect our relationship with Applied Biosystems to continue into the foreseeable future.



We do not currently receive significant royalty payments from our patent portfolio with the exception of the Applied Biosystems agreement. We are
evaluating our intellectual property position and may choose to license portions of our patent portfolio in the future, if we believe the terms and conditions are acceptable in relationship to our future product pipeline.



Contracts and grants



We fund some of our research and development efforts through contracts and
grants awarded by various federal and state agencies. Revenue is recognized under these contracts and grants as expenses are incurred. We do not believe these grants will be our primary source of on-going revenue but provide us additional revenue
while offsetting our research and development costs. We will continue to seek new contracts and grants that are aligned with our internal research and development goals.



Other:



Acquisitions and goodwill valuation:



We actively and selectively seek to acquire companies with complementary products and strong intellectual property positions to allow us to expand our
product offerings and penetrate emerging markets. In 2004, we acquired in all stock transactions, SynX and Epoch to obtain new product lines for the proteomics technology pipeline (e.g. point-of-care) and real-time ASR diagnostic markets,
respectively. We believe that these acquisitions are important to our long-term strategy and are an example of our ongoing efforts to build a stronger company with products to serve the advanced diagnostic marketplace. We anticipate using our common
stock as the primary currency to purchase future companies or product lines.



Our business strategy includes acquiring companies, technologies and product lines to complement our internally developed products and expand our product offerings. During 2004, we identified SynX



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and Epoch as two businesses operating in market niches that were complementary to our existing business and products and which we believed would offer us the
ability to broaden our product line. We also believed that our existing sales and marketing infrastructure would allow us to market and sell the current and future products of these companies within our current sales and marketing organization.
Finally, we identified numerous operational and administrative functions which could be consolidated within the combined company. These factors were among those that contributed to a purchase price resulting in the recognition of goodwill.



We utilized an independent third party to perform a valuation
analysis related to intangible assets of SynX and Epoch as of their respective acquisition dates. We reviewed the assumptions, calculations and conclusions of this valuation analysis for accuracy and reasonableness. We recognized identified
intangible assets in our acquisitions if we could identify an asset from contractual or other legal rights or if the asset is separable from the business. We considered an asset separable if it (a) was capable of being sold,
transferred, licensed, rented or exchanged or (b) can be transferred in combination with a related asset or liability. We then identified the intangible assets in SynX and Epoch in the following areas: marketing, customer relationships, artistic
creation, contracts and technologies. For technologies acquired, we considered the guidelines set forth in SFAS No.2 Accounting for Research and Development Expense and FASB Interpretation No. 4 Applicability of FASB
Statement No.2 to Business Combinations Accounted for by the Purchase Method to determine whether a technology is classified as complete or in-process research and development (IPR&D).Pursuant to the above
guidelines, we assessed the value and future applications of technology assets to be used in IPR&D projects. We expensed technologies determined to have no alternative future use. Completed technology was recorded at its fair value and will be
amortized over its estimated remaining useful life.



In-process research and development



Based
upon a valuation by an independent third party, we allocated $3.8 million of the purchase price of SynX to IPR&D related to congestive heart failure (CHF), traumatic brain injury (TBI) and diabetes diagnostic products. The research and
development underlining these applications was unique to our current research and development projects involving microarray technology. The IPR&D asset was expensed at the date of acquisition in accordance with FIN 4. The value assigned to
acquired IPR&D was determined by estimating the expenses required to develop the acquired IPR&D into commercially viable products, estimating the resulting cash flows from the products and discounting the net cash flows to their present
values and to reflect the risks associated with the development of the products.The discount rates used ranged from 30% to 40% reflecting the inherent risks involved in launching complex diagnostic products. The calculations of value were
adjusted to reflect the creation efforts which were made prior to the close of the acquisition. The IPR&D expense resulting from these calculations allocated $2.7 million in fair value to CHF, $504,000 in fair value to TBI and $577,000 in fair
value for diabetes diagnostics. At the time of the acquisition, the CHF product was the closest to completion, and is currently expected to be launched in the second half of 2005. The TBI and diabetes products are still in the early stages of the
development cycle.



The development of medical diagnostic
devices is subject to a number of risks, including development, regulatory and marketing risks. There can be no assurance our development stage products will overcome these hurdles and become commercially viable products or gain commercial
acceptance. We did not have accurate estimates as to the resource requirements needed to launch new products in research and development at the time of the acquisition. We fund these products with our working capital. As of June 30, 2005, none of
these products has been commercialized.



Manufacturing:



Except for our oligonucleotide, genomics services and
specialized manufacturing production businesses, which are make-to-order businesses, we principally manufacture products for inventory and



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ship products shortly after the receipt of orders, and anticipate that we will continue to do so in the future. We do not currently have a significant
backlog and do not anticipate we will develop a material backlog in the near future. In addition, we rely on third-party manufacturers to supply many of our raw materials, product components, and in some cases, entire products.



Hitachi manufactures our NanoChip® systems and we manufacture the majority of our consumable products in our manufacturing
facilities in San Diego, California and Bothell, Washington.



Development and manufacturing agreement with Princeton BioMeditech Corporation (PBM):



Through SynX we are a party to a 2001 development and manufacturing agreement between SynX Pharma and PBM to jointly develop and market various
point-of-care tests for certain biomarkers and protein targets. Under this arrangement PBM worked to develop, produce, and distribute rapid assay diagnostic point-of-care products (POC Rapid Assay) utilizing reagents supplied by SynX.
SynX agreed to pay a portion of the development costs for a POC reader prior to our acquisition. There were no remaining funding obligations at the time we acquired SynX. Any revenue generated by jointly developed products is required to
be shared between the parties. As of June 30, 2005, we did not have any significant revenue under this agreement.



We are currently in discussions with PBM to clarify and modify various terms within this agreement. Although this agreement is unclear on certain terms
and is subject to change in the near future, we believe that PBM will be responsible for procuring the CHF reader, manufacturing the CHF consumables, and marketing, selling and distributing the CHF readers and tests within the United States. We will
be responsible for providing certain reagents for the CHF consumable product and for marketing, selling and distributing the CHF readers and tests outside of the United States. We also expect that the parties will share revenues with the majority of
revenues being allocated to the party responsible for selling, marketing and distributing the CHF product within a specific geographic territory. We expect that each party will be responsible for its own manufacturing, sales and marketing expenses.



Other than the revenue stream payments and shared funds of the
reader development, there are no material purchase minimums or required payments between the parties in the agreement.



In the year ended December 31, 2004 there were no payments between the parties. In the six months ended June 30, 2005, we ordered and paid approximately
$200,000 for CHF readers from PBM in the first quarter.



FDA
regulations:



Many of our products are used for research
purposes, and their use by our customers generally is not regulated by the United States Food and Drug Administration, or FDA, or by any comparable international organization, with several limited exceptions including ASR products which are subject
to certain manufacturing standards. When we begin to distribute and manufacture products for non-CLIA laboratory customers and point-of-care customers, we are subject to additional FDA regulation and oversight and are required to comply with the
Quality System Regulations, which was formerly known as good manufacturing practices, or GMP, and is described in 21 CFR part 820. Additionally, some of these same sites and products are intended to comply with certain voluntary quality programs
such as ISO 9001.



Fluctuations:



We anticipate that our results of operations will fluctuate on a quarterly
and annual basis and will be difficult to predict. The timing and degree of fluctuation will depend upon several factors, including those discussed under Risk Factors That May Affect Future Results. In addition, our results of operations
could be affected by the timing of orders from distributors and the mix of sales between distributors and



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our direct sales force. Although we have experienced revenue growth in the last six months, we cannot assure you that we will be able to achieve revenue
growth or profitability on a quarterly or annual basis.



Results of
operations three and six months ended June 30, 2005 compared to the three and six months ended June 30, 2004



Revenues



The following table summarizes our revenues (in thousands):



|                                |  |                                     |       |      |                                   |            |  |   |       |   |      |   |            |  |   |       |  |   |       |  
|------------------------------- |  | ----------------------------------- | ----- | ---- | --------------------------------- | ---------- |  | - | ----- | - | ---- | - | ---------- |  | - | ----- |  | - | ----- | -
|                                |  | For the three months ended June 30, |       |      | For the six months ended June 30, |           
|                                |  | 2005                                |       | 2004 |                                   | Difference |  |   | 2005  |   | 2004 |   | Difference | 
|Product sales                   |  | $                                   | 1,078 |      | $                                 | 477        |  | $ | 601   |   |      | $ | 2,288      |  | $ | 1,609 |  | $ | 679   |  
|License fees and royalty income |  |                                     | 1,623 |      |                                   | 38         |  |   | 1,585 |   |      |   | 3,323      |  |   | 190   |  |   | 3,133 |  
|Sponsored research              |  |                                     |      |      |                                   | 125        |  |   | (125  | ) |      |   |           |  |   | 500   |  |   | (500  | )
|Contracts and grants            |  |                                     | 434   |      |                                   | 478        |  |   | (44   | ) |      |   | 700        |  |   | 978   |  |   | (278  | )
|                                |  |                                     |       |      |                                   |            |  |   |       |   |      |   |            |  |   |       |  |   |       |  
|Total                           |  | $                                   | 3,135 |      | $                                 | 1,118      |  | $ | 2,017 |   |      | $ | 6,311      |  | $ | 3,277 |  | $ | 3,034 |  
|                                |  |                                     |       |      |                                   |            |  |   |       |   |      |   |            |  |   |       |  |   |       |  



| |  |  | Product sales include revenue from our three product lines of advanced diagnostic products: real-time PCR products that include both custom designed products for the research market
and ASRs which are sold to clinical laboratories, microarray instrument platforms and related ASRs consumables (NanoChip® system) and point-of-care tests. Product sales rose during the three and six months ended June 30, 2005 as compared to the same periods in the prior
year primarily due to additional revenue from real-time PCR products acquired through the acquisition of Epoch in December 2004. Revenue from the NanoChip® system fell by approximately 45% in the six months ended June 30, 2005 when compared to the same period in 2004, due to a price reduction on
the NanoChip® systems sold in anticipation of a
second generation product.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future:
In the second half of 2005, we are expecting to accelerate sales revenue growth by broadening our platform technologies portfolio beyond the advanced research market by entering into the clinical laboratory market and the point-of-care market with
several new products. To address the clinical diagnostic market and the smaller research market our second generation NanoChip®400 has several features not available in the first generation system. In addition, we are addressing the point-of-care market with a congestive heart failure product that will test for levels of the
protein NT-proBNP in emergency rooms or doctors offices.



| |  |  | License fees and royalty income include non-refundable fees generated from the licensing of our technology with third parties. License fees and royalty income increased in the three
and six months ended June 30, 2005 as compared to the same periods in 2004 due to the royalty bearing licensing agreement with Applied Biosystems for the TaqMan® 5-nuclease real-time PCR assays.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future: We continually evaluate additional licensing opportunities for our intellectual property. Through our
recent acquisition we obtained a royalty bearing licensing agreement with Applied Biosystems, for the TaqMan® 5-nuclease real-time PCR assays with contractual minimums through the third quarter of 2005 and thereafter we will receive royalty payments based on actual sales. We expect license
fee revenue to remain consistent through the third quarter of 2005 due to contractual minimums. After the third quarter of 2005 we expect the licenses revenue may decrease significantly based on our analysis of the historic sales of the product.



23



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| |  |  | Sponsored research revenue is nonrefundable money generated through the development agreement with Hitachi. We did not recognize any sponsored research revenue in 2005 due to the
termination of the Hitachi collaborative research agreement in August 2003. Funding through this agreement was completed in the second quarter of 2004.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future: With the conclusion of our sponsored research agreement with Hitachi in the second quarter of 2004, we do
not expect any revenue from Hitachi in 2005 or thereafter. We may enter into additional sponsored research projects in the future.



| |  |  | Contracts and grants revenue is nonrefundable payments by various federal and state agencies for our research and development efforts awarded through contracts and grants. Contracts
and grants revenue is recorded as the costs and expenses to perform the research are incurred, if the amount is reasonably commensurate with the effort expended and collection of the payment is reasonably assured. Under certain arrangements where
funding is provided for contractually on a scheduled basis, revenue is recorded ratably over the term of the arrangement. Payments received in advance under these arrangements are recorded as deferred revenue until the expenses are incurred. The
decrease in contract and grant revenue in the six months ended June 30, 2005 as compared to the same period in the prior year is primarily related to the completion in the first quarter of 2005 of certain grants with no additional grants to replace
the ones that were completed. In the three months ended June 30, 2005, we entered into several new contracts and grants that began to offset our decrease in revenue as compared to the same period in the prior year.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future:The recognition of revenue under contracts and grants may
vary from quarter to quarter and may result in significant fluctuations in operating results from year to year depending on the timing and quantity of contracts and grants. In the future, we expect contract and grant revenue to become a decreasing
portion of our overall revenues. We expect the majority of our revenue growth to be generated through an increase in product revenue.



Cost and expenses



Cost of product sales (in thousands):



|                      |  |                                     |       |      |                                   |            |  |   |      |   |      |   |            |  |   |       |  |   |      |  
|--------------------- |  | ----------------------------------- | ----- | ---- | --------------------------------- | ---------- |  | - | ---- | - | ---- | - | ---------- |  | - | ----- |  | - | ---- | -
|                      |  | For the three months ended June 30, |       |      | For the six months ended June 30, |           
|                      |  | 2005                                |       | 2004 |                                   | Difference |  |   | 2005 |   | 2004 |   | Difference | 
|Cost of product sales |  | $                                   | 1,128 |      | $                                 | 1,940      |  | $ | (812 | ) |      | $ | 2,274      |  | $ | 2,854 |  | $ | (580 | )



| |  |  | Cost of product sales includes the material, manufacturing labor, overhead costs and inventory impairment charges related to our products. In the three and six months ended June 30,
2005, the cost of product sales included costs related to the sale of the NanoChip® system (only in the first quarter 2005, see below), the cost of delivering real-time ASRs and other various diagnostic products from our SynX operations as compared to the same period in 2004, where the cost
of product sales primarily related to the NanoChip®
system. The decrease in cost of product sales in the three and six months ended June 30, 2005 as compared to the same period in 2004, was primarily due to inventory reserves taken in 2004 for the NanoChip® system.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



As of June 30, 2005, we had an inventory reserve of $6.0 million primarily related to our first generation NanoChip® system as compared to $4.1 million as of June 30, 2004.
This inventory reserve was accumulated throughout 2004 and 2003 during our quarterly evaluations of anticipated sales for the next twelve months. After our announcement of a second generation



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system in October 2004 and evaluating actual sales during the year, we reserved (expensed) the net remaining carrying value of all first generation
NanoChip® systems without purchase orders as of
December 31, 2004. In the three months ended June 30, 2005, we sold approximately $133,000 of NanoChip® systems that had been fully reserved. Therefore the expense was not recorded in our cost of product sold. Going forward, future sales of our first generation system are highly uncertain
in light of our anticipated release of a second generation system later in 2005. Future sales of first generation NanoChip® systems, if any, will have a minimal cost of product sales.



The future. We are still in the early stages of commercialization of our real-time ASRs product line and are working to build in efficiencies
into our manufacturing processes and expect to see improved gross margins in the future. We anticipate the second generation NanoChip®System will have a lower selling price per unit; therefore, our gross margins will depend on the number of units sold or rented to absorb our fixed capacity costs. We are still developing our models
for accurately predicting the gross margins on our point-of-care testing products for the diagnosis of congestive heart failure as much depends on pricing and volume of sales.



Research and development expenses (in thousands):



|                                  |  |                                     |       |                                   |   |            |  |      |       |      |   |            |  |   |       |  |   |      
|--------------------------------- |  | ----------------------------------- | ----- | --------------------------------- | - | ---------- |  | ---- | ----- | ---- | - | ---------- |  | - | ----- |  | - | -----
|                                  |  | For the three months ended June 30, |       | For the six months ended June 30,
|                                  |  | 2005                                |       | 2004                              |   | Difference |  | 2005 |       | 2004 |   | Difference
|Research and development expenses |  | $                                   | 5,160 |                                   | $ | 4,040      |  | $    | 1,120 |      | $ | 10,072     |  | $ | 8,388 |  | $ | 1,684



| |  |  | Research and development expenses include the associated costs of salaries and benefits for scientific, engineering and operations personnel, costs associated with improving and
refining our current products as well as development of potential new products and protocols, lab supplies, consulting, travel, facilities, expenses incurred with our contract and grant revenue and other expenditures associated with our research and
product development activities. The increase in research and development expenditures in the three and six months ended June 30, 2005 as compared to the same period in 2004, primarily related to product development expenses of real time ASR products
related to our acquisition of Epoch with no comparable expenses in 2004.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future. We expect our research and development expenditures to remain at a similar level for the remainder of the year as we continue to control our development costs. However, we may incur additional costs
if we acquire additional businesses or enter into significant development agreements in the second half of the year. We will continue to focus our research and development expenditures in our current technology platforms (microarray, real time ASRs
and point-of-care applications) in the advanced diagnostic market.



Selling,
general and administrative expenses (in thousands):



|                                             |  |                                     |       |                                   |   |            |  |      |       |      |   |            |  |   |       |  |   |      
|-------------------------------------------- |  | ----------------------------------- | ----- | --------------------------------- | - | ---------- |  | ---- | ----- | ---- | - | ---------- |  | - | ----- |  | - | -----
|                                             |  | For the three months ended June 30, |       | For the six months ended June 30,
|                                             |  | 2005                                |       | 2004                              |   | Difference |  | 2005 |       | 2004 |   | Difference
|Selling, general and administrative expenses |  | $                                   | 6,410 |                                   | $ | 4,234      |  | $    | 2,176 |      | $ | 12,377     |  | $ | 7,809 |  | $ | 4,568



| |  |  | Selling, general and administrative expenses include sales and marketing personnel, tradeshows, promotional activities and materials, administrative personnel,
legal, other professional expenses
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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and general corporate expenses. We had a $2.9 million increase in general and administrative expenses in the six months ended June 30, 2005 as compared to
the same period in 2004 that related to expenses we incurred managing a more complex and diverse business, costs associated with the Sarbanes-Oxley Act compliance and the integration of Epoch. In addition, we had a $1.7 million increase related to
our sales and marketing expenditures in anticipation of future product releases of the NanoChip® 400 and point-of-care product lines.



The future. In future quarters we expect selling, general and administrative expenses to remain consistent as we incur synergies and savings by
consolidating many of the general and administrative functions as we fully integrate Epochs operations. However, the savings from consolidation of general and administrative activities are expected to be offset by increased sales and marketing
expenses required to support the various new product launches expected later in 2005. Expenses may also be further impacted by potential future business combinations or corporate development transactions.



Charge for acquired in-process research and development (in thousands):



|                                                        |  |                                     |   |      |                                   |            |  |   |        |   |      |   |            |  |   |       |  |   |        |  
|------------------------------------------------------- |  | ----------------------------------- | - | ---- | --------------------------------- | ---------- |  | - | ------ | - | ---- | - | ---------- |  | - | ----- |  | - | ------ | -
|                                                        |  | For the three months ended June 30, |   |      | For the six months ended June 30, |           
|                                                        |  | 2005                                |   | 2004 |                                   | Difference |  |   | 2005   |   | 2004 |   | Difference | 
|Charge for acquired in-process research and development |  | $                                   |  |      | $                                 | 3,758      |  | $ | (3,758 | ) |      | $ |           |  | $ | 3,758 |  | $ | (3,758 | )



| |  |  | We incurred a non-cash charge of $3.8 million related to the expensing of acquired in-process research and development or IPR&D, related to the SynX acquisition in the second
quarter of 2004 with no comparable charges in the same period of 2005. The IPR&D asset was expensed at the date of acquisition in accordance with FASB Interpretation No. 4 Applicability of FASB Statement No.2 to Business Combinations
Accounted for by the Purchase Method. The estimated fair value of $3.8 million in IPR&D expense was related to $2.7 million for congestive heart failure (CHF), $504,000 for traumatic brain injury (TBI) and $577,000 for diabetes
diagnostic products. These products as of the acquisition date in April 2004, had not reached technological feasibility and had no alternative future uses.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future. The development of these diagnostic products is subject to a number of risks, including development,
regulatory and marketing risks. As of June 30, 2005 none of these products has been commercialized; however, our CHF product is closest to commercialization. We do not currently have a schedule for the commercialization of the TBI or diabetes
diagnostic products. The primary risk associated with not completing this technology as anticipated is the delay in recovery or non-recovery of our investment in this area of research and development. We do not expect to incur any additional charges
for acquired IPR&D related to the SynX or Epoch acquisitions. However, if we acquire other companies in the future, we may incur additional material in-process research and development charges. Costs associated with the completion of IPR&D
are recorded as research and development expenses in the period incurred.



Amortization of purchased intangible assets (in thousands):



|                                            |  |                                     |     |                                   |   |            |  |      |     |      |   |            |  |   |   |  |   |    
|------------------------------------------- |  | ----------------------------------- | --- | --------------------------------- | - | ---------- |  | ---- | --- | ---- | - | ---------- |  | - | - |  | - | ---
|                                            |  | For the three months ended June 30, |     | For the six months ended June 30,
|                                            |  | 2005                                |     | 2004                              |   | Difference |  | 2005 |     | 2004 |   | Difference
|Amortization of purchased intangible assets |  | $                                   | 392 |                                   | $ |           |  | $    | 392 |      | $ | 785        |  | $ |  |  | $ | 785



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| |  |  | Amortization of purchased intangible assets relates to our acquisition of Epoch in 2004 where we acquired the rights to certain completed technology and customer contracts valued at
approximately $10.6 million. We are amortizing (expensing) these intangible assets over periods ranging from 3 to 10 years.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The future. In future quarters in 2005, we expect this amortization expense to remain consistent at its current level. The amortization expense may
also be impacted by potential future business combinations or our periodic impairment evaluations.



Other income



The following table summarizes our other income (in thousands):



|                                            |  |                                     |     |   |                                   |   |      |            |  |   |      |   |  |      |       |   |            |   |       |   |  |   |        |  
|------------------------------------------- |  | ----------------------------------- | --- | - | --------------------------------- | - | ---- | ---------- |  | - | ---- | - |  | ---- | ----- | - | ---------- | - | ----- | - |  | - | ------ | -
|                                            |  | For the three months ended June 30, |     |   | For the six months ended June 30, |  
|                                            |  | 2005                                |     |   | 2004                              |   |      | Difference |  |   | 2005 |   |  | 2004 |       |   | Difference |  
|Interest income, net                        |  | $                                   | 309 |   |                                   | $ | 129  |            |  | $ | 180  |   |  | $    | 488   |   |            | $ | 231   |   |  | $ | 257    |  
|Other expense                               |  |                                     | (22 | ) |                                   |   | (147 | )          |  |   | 125  |   |  |      | (110  | ) |            |   | (167  | ) |  |   | 57     |  
|Warrant valuation adjustment                |  |                                     | (44 | ) |                                   |   |     |            |  |   | (44  | ) |  |      | 837   |   |            |   |      |   |  |   | 837    |  
|Gain (loss) on foreign currency translation |  |                                     | (9  | ) |                                   |   | (17  | )          |  |   | 8    |   |  |      | 4     |   |            |   | 1,204 |   |  |   | (1,200 | )
|                                            |  |                                     |     |   |                                   |   |      |            |  |   |      |   |  |      |       |   |            |   |       |   |  |   |        |  
|Total other income                          |  | $                                   | 234 |   |                                   | $ | (35  | )          |  | $ | 269  |   |  | $    | 1,219 |   |            | $ | 1,268 |   |  | $ | (49    | )
|                                            |  |                                     |     |   |                                   |   |      |            |  |   |      |   |  |      |       |   |            |   |       |   |  |   |        |  



Interest income, net



| |  |  | Interest income primarily relates to the interest we receive on our cash, cash equivalents, and short-term investments netted against the interest expense we incur from debt
obligations. Our interest income increased in the three and six months ended June 30, 2005 as compared to the same periods in 2004 due to higher interest rates on our short-term investments.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Warrant valuation adjustment



| |  |  | Warrant valuation adjustment relates to our acquisition of Epoch in 2004 where we assumed warrants convertible into 381,317 shares of our common stock that contain a cash redemption
feature which may be triggered under certain conditions. We accounted for the fair value of these warrants in our purchase accounting, with a portion of the value assigned to the cash redemption liability, and the remaining portion recorded as
additional paid-in capital. We are required to revalue the cash redemption liability related to these warrants quarterly using the Black-Scholes valuation model with the changes in value accrued in the balance sheet and the associated non-cash
income or expense recorded in the statement of operations. This revaluation adjustment occurred due to an increase in our stock price during the quarter thereby increasing the implied value of the warrant. Should our stock price fall in future
quarters, this non-cash warrant valuation adjustment will become income rather than an expense as it was in the current quarter.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Gain on Foreign Currency Translation



| |  |  | The decrease in foreign currency translation income in the six months ended June 30, 2005 primarily relates to the first quarter of 2004 decision to reorganize and
discontinue all business
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | activities of our majority owned subsidiary, Nanogen Recognomics GmbH. In accordance with Statement of Financial Accounting Standards No. 52,
Foreign Currency Translation, and its related interpretations, when the business activity at this entity was discontinued we were required to recognize a one time gain of $1.2 million related to previously unrealized gains from
foreign currency translation.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Liquidity and capital
resources



Short-term and long-term liquidity



The following is a summary of our key liquidity measures as of June 30, 2005
and December 31, 2004 (in thousands):



|                                                                              |  |               |        |   |                   |   |         |            |  |   |         |  
|----------------------------------------------------------------------------- |  | ------------- | ------ | - | ----------------- | - | ------- | ---------- |  | - | ------- | -
|                                                                              |  | June 30, 2005 |        |   | December 31, 2004 |   |         | Difference | 
|Cash and cash equivalents                                                     |  | $             | 18,824 |   |                   | $ | 15,372  |            |  | $ | 3,452   |  
|Short-term investments, available for sale                                    |  |               | 13,051 |   |                   |   | 36,562  |            |  |   | (23,511 | )
|                                                                              |  |               |        |   |                   |   |         |            |  |   |         |  
|Total cash and cash equivalents and short-term investment, available for sale |  | $             | 31,875 |   |                   | $ | 51,934  |            |  | $ | (20,059 | )
|                                                                              |  |               |        |   |                   |   |         |            |  |   |         |  
|Current assets                                                                |  | $             | 38,736 |   |                   | $ | 57,442  |            |  |   | (18,706 | )
|Current liabilities                                                           |  |               | (9,244 | ) |                   |   | (12,443 | )          |  |   | 3,199   |  
|                                                                              |  |               |        |   |                   |   |         |            |  |   |         |  
|Working capital                                                               |  | $             | 29,492 |   |                   | $ | 44,999  |            |  | $ | (15,507 | )
|                                                                              |  |               |        |   |                   |   |         |            |  |   |         |  



Our cash and cash
equivalents and short-term investments, available for sale and working capital decreased $20.1 million and $15.5 million, respectively, in the six months ended June 30, 2005. In addition, we are in the early stages of our products life cycle,
requiring us to expend cash as we develop and expand our product pipeline, bring products to market and manage this activity. We believe we will continue to consume cash and have quarterly net losses during the next several years. We have incurred
negative cash flows from operations since inception and do not expect to generate positive cash flows to fund our operations until our product offerings achieve greater sales and begin to generate a return on investment.



We expect that our existing capital resources, combined with anticipated
product revenues, license fees, contract and grant funding and access to financing, will be sufficient to support our planned operations, at least through June 30, 2006. This estimate is a forward-looking statement that involves risks and
uncertainties, and actual results may differ materially. Without access to financing (on terms acceptable to us) within the next twelve months, we may have to cease or curtail operations that may materially alter our current business strategy,
product development, financial condition or results of operations. As part of our plans to secure sufficient cash to fund our operations, to complete strategic acquisitions of businesses or products and commercialize our products in development, in
June 2005, we filed a registration statement with the Securities and Exchange Commission for an aggregate public offering up to $60,000,000. We are currently determining the timing and most appropriate type of offering (which may involve any
combination of common stock, preferred stock, debt securities or warrants) that balances our cash requirements with the interest of our stock holders.



From inception to June 30, 2005, we have financed our operations primarily by:



| |  |  | Issuing our stock
| | - |  | -----------------



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| |  |  | Generating revenues
| | - |  | -------------------



| |  |  | Cash obtained through our acquisition of Epoch
| | - |  | ----------------------------------------------



| |  |  | Using proceeds from our litigation settlement with CombiMatrix
| | - |  | --------------------------------------------------------------



| |  |  | Obtaining a modest amount of capital equipment long-term financing
| | - |  | ------------------------------------------------------------------



We believe that our near-term borrowing requirements and debt repayments will continue to involve a relatively small amount of cash.



We invest excess funds in short-term investments that are classified as
available-for-sale. We believe that it is important to maintain a significant amount of cash and short-term investments on hand to ensure that we have adequate resources to fund future research and development, provide working capital and assuage
legal risks and challenges to our business model.



Cash
provided by (used in) operating, investing and financing activities of the six months ended June 30, 2005 and 2004 are as follows (in thousands):



|                                                    |  |               |         |   |               |   |         |  
|--------------------------------------------------- |  | ------------- | ------- | - | ------------- | - | ------- | -
|                                                    |  | June 30, 2005 |         |   | June 30, 2004 |  
|Net cash used in operating activities               |  | $             | (17,535 | ) |               | $ | (15,162 | )
|Net cash provided by (used in) investing activities |  |               | 20,831  |   |               |   | (33,982 | )
|Net cash provided by financing activities           |  | $             | 132     |   |               | $ | 49,109  |  



Operating activities



Net cash used in operating activities for the six months
ended June 30, 2005 and 2004 primarily related to our net losses, changes in working capital due to the product shipments and payments in liabilities. The net loss in both periods was primarily related to the costs associated with commercializing
our products that includes broadening our product lines, the development and support of our sales and marketing organization, continuing research and development efforts on existing products and the administration of this activity.



Investing activities



Net cash provided by investing activities in the six months ended June 30, 2005 primarily related to net proceeds from the
sale of short-term investments, which was offset by the purchase of fewer short-term investments (i.e. we utilized short-term investments to fund our operating activities). In addition, we had approximately $1.7 million in payments related to our
December 2004 acquisition of Epoch. Net cash used in investing activities in the six months ended June 30, 2004 primarily related to reinvesting the cash we realized from our common stock sale into purchasing available-for-sale short-term
investments in order to enhance our yield on our cash balances. In addition, we provided $998,000 to fund the operations of SynX before we acquired the company in April of 2004.



Capital spending is essential to our product innovation initiatives and maintaining our operational capabilities. In the six
months ended June 30, 2005 and 2004, we used cash to purchase $927,000 and $149,000, respectively, in equipment to support the development of our product lines. The additional capital spending in the six months ended June 30, 2005 was primarily due
to the purchase of additional scientific equipment related to our more diversified development activities.



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Financing activities



Net cash provided by financing activities in the six months ended June 30, 2005 related to proceeds of $198,000 from the exercise of employee stock
options and to offset the cost of purchasing equipment, we issued a $480,000 promissory note secured by the equipment. We currently have approximately $965,000 of funding available under our financing line as of June 30, 2005.



Net cash provided by financing activities in the six months ended June 30,
2004 related to the $39.5 million in gross proceeds from sale of common stock, $4.4 million in gross proceeds from the exercise of warrants related to financing in September 2003, and approximately $5.0 million from the exercise of employee stock
options. In addition, we received $441,000 under a development agreement with Hitachi that ended in 2004.



In the six months ended June 30, 2005 and 2004, net cash provided by financing activities was offset by payments related to our debt obligations of
$546,000 and $238,000, respectively.



We have no significant
contractual obligations not fully recorded on our Consolidated Balance Sheets or fully disclosed in the Notes to our Condensed Consolidated Financial Statements. We have no off-balance sheet arrangements.



Critical Accounting Policies



There were no material changes in the critical accounting policies or
estimates from those at December 31, 2004.



Related Party Transaction:



In June 2005, we signed a letter of agreement with
FasTraQ, Inc. (FasTraQ) for the development of certain future product. Our Chief Executive Officer and Chairman of the Board, Mr. Birndorf, is a director and an investor in FasTraQ. Mr. Birndorf abstained from the discussions and votes
regarding FasTraQ at the meetings of our Board of Directors. We made an initial non-refundable payment of $500,000 to FasTraQ to begin the initial development of this product. We will expense the $500,000 over approximately six months which is the
estimated time required to perform the development.



Future Accounting
Requirements



In December 2004, the FASB issued Statement
of Financial Accounting Standards No. 123 (revised 2004), Share-Based Payment, that addresses the accounting for share-based payment transactions in which an enterprise receives employee services in exchange for either equity
instruments of the enterprise or liabilities that are based on the fair value of the enterprises equity instruments or that may be settled by the issuance of such equity instruments. The statement eliminates the ability to account for
share-based compensation transactions, as we do currently, using the intrinsic value method as prescribed by Accounting Principles Board, or APB, Opinion No. 25, Accounting for Stock Issued to Employees, and generally requires
that such transactions be accounted for using a fair-value-based method and recognized as expenses in our consolidated statement of income. The statement requires companies to assess the most appropriate model to calculate the value of the options.
We currently use the Black-Scholes option pricing model to value options and are currently assessing which model we may use in the future under the new statement and may deem an alternative model to be the most appropriate. The use of a different
model to value options may result in a different fair value than the use of the Black-Scholes option pricing model. In addition, there are a number of other requirements under the new standard that would result in differing accounting treatment than
currently required. These differences include, but are not limited to, the accounting for the tax benefit on employee stock options and for stock issued under our employee stock



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purchase plan, and the presentation of these tax benefits within the consolidated statement of cash flows. In addition to the appropriate fair value model to
be used for valuing share-based payments, we will also be required to determine the transition method to be used at date of adoption. The allowed transition methods include modified prospective and modified retroactive adoption options. The modified
prospective method requires that compensation expense be recorded for all unvested stock options and restricted stock at the beginning of the first quarter of adoption of FAS No. 123R, while the retroactive methods would record compensation expense
for all unvested stock options and restricted stock beginning with the first period restated.



In April 2005, the Securities and Exchange Commission announced the adoption of Release No. 33-8568, Amendment to Rule 4-01(a) of Regulation S-X Regarding the Compliance Date for Statement of Financial
Standards No. 123 (Revised 2004), Share-Based Payment, that amends the effective date of FAS No. 123R. The effective date of the new standard under these new rules for our consolidated financial statements is January 1, 2006. Adoption of
this statement will have a significant impact on our consolidated financial statements as we will be required to expense the fair value of our stock option grants and stock purchases under our employee stock purchase plan rather than disclose the
impact on our consolidated net income within our footnotes, as is our current practice.



RISK FACTORS THAT MAY AFFECT FUTURE RESULTS



You should carefully consider the following risks, together with other matters described in this Form 10-Q or incorporated herein by reference in evaluating our business and prospects. If any of the following risks occurs, our
business, financial condition or operating results could be harmed. In such case, the trading price of our securities could decline. The risks described below are not the only ones we face. Additional risks not presently known to us or that we
currently deem immaterial may also impair our business operations. Certain statements in this Form 10-Q (including certain of the following factors) constitute forward-looking statements.



If our products are not successfully developed or commercialized, we could be forced to curtail or cease operations.



We are at an early stage of development. As of June
30, 2005, we had only a limited product offering that includes our NanoChip® System (which consists of our NanoChip® Molecular Biology Workstation and NanoChip® Cartridge), NanoChip® Cartridge, various ASRs for detection of gene mutations associated with diseases such as cystic fibrosis, general purpose reagents and accessories to facilitate assay and protocol development and validation on the
NanoChip Platform, through our acquisition of Epoch real-time ASRs that are platform independent for providing diagnosis of infectious and genetic diseases and, through our acquisition of SynX, point-of-care diagnostic tests for myocardial
infarction and drugs of abuse. We announced our second-generation instrument, the NanoChip® 400, in October 2004. This new instrument is expected to begin shipping in 2005. All of our other platforms and ASRs and other potential products are under development. Our NanoChip® System, ASRs or our other products may not be successfully developed or
commercialized on a timely basis, or at all. If we are unable, for technological or other reasons, to complete the development, introduction or scale-up of manufacturing of our new products, or if our products do not achieve a significant level of
market acceptance, we would be forced to curtail or cease operations.



We are also party to transactions known as reagent rentals and cost-per-test agreements. Under these types of transactions, we place a Workstation at a customer site with no upfront cost to the customer. The value of the instrument is
typically recaptured through a contracted stream of future reagent sales, sold at a premium to cover the cost of the system. These reagent rentals and cost-per-test agreements might have an adverse impact on our short-term instrument sales revenue
and cash flow as the revenues and cash received under these agreements are over the life of the contract, as reagents are shipped to the customer. Our success will depend upon our ability to continue to overcome significant



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technological challenges and successfully introduce our products into the marketplace. A number of applications envisioned by us may require significant
enhancements to our basic technology platform. There can be no assurance that we can successfully develop such enhancements.



Lack of market acceptance of our products and technology would harm us.



Although we have developed a number of products as discussed above, we may not be able to further develop these products or
to develop other commercially viable products. Even if we develop a product, it may not be accepted in the marketplace. If we are unable to achieve market acceptance, we will not be able to generate sufficient product revenue to become profitable.
We may also be forced to carry greater inventories of our products for longer periods than we may have anticipated. If we are unable to sell the inventory of our products in a timely fashion and at anticipated price levels, we may not become
profitable. In addition, we may have to take accounting charges and reduce the value of our product inventory to its net realizable value. In the six months ended June 30, 2005 we did not incur any charge to reduce our inventory to its net
realizable value, however, in the years ended December 31, 2004, 2003, and 2002 we took accounting charges of approximately $3.7 million, $908,000 and $1.1 million, respectively, to reduce product inventory to its estimated net realizable value. If
actual future demand or market conditions are less favorable than those currently projected by us, additional inventory write-downs may be required. Market acceptance will depend on many factors, including our ability to:



| |  |  | convince prospective strategic partners and customers that our technology is an attractive alternative to other technologies;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | manufacture products in sufficient quantities with acceptable quality and at an acceptable cost; and
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | sell, place and service sufficient quantities of our products.
| | - |  | --------------------------------------------------------------



In addition, our technology platform could be harmed by limited funding available for product and technology acquisitions by our customers, internal
obstacles to customer approvals of purchases of our products and market conditions in general.



Performance issues with our products may also harm market acceptance of our products and reduce our revenues. During the year ended December 31, 2004, certain clinical laboratories experienced performance issues with
our cystic fibrosis analyte specific reagent, CFTR ASR, which negatively impacted our revenue. We are not currently offering our CFTR ASRs for sale in the United States. We are developing new reagents for the NC400. However, we may not be able to
address product issues to the satisfaction of our clinical laboratory customers and they may decide to adopt alternative products or may not resume purchases of our CFTR ASR.



Commercialization of some of our potential products depends on collaborations with others. If our collaborators are not successful or
if we are unable to find collaborators in the future, we may not be able to develop these products.



Our strategy for the research, development and commercialization of some of our products requires us to enter into contractual arrangements with corporate
collaborators, joint venture partners, licensors, licensees and others. Our success depends in part upon the performance by these collaboration partners and potential collaboration partners of their responsibilities under these arrangements. Some
collaborators may not perform their obligations as we expect, and we may not derive any revenue or other benefits from these arrangements. We do not know whether our collaborations will successfully develop and market any products under our
respective agreements. Moreover, some of our collaborators are also researching competing technologies targeted by our collaborative programs.



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Our NanoChip® System instruments, including Molecular Biology Workstation and the second-generation NanoChip® 400, are manufactured by Hitachi. As such our success in the micro-array based
diagnostics market is largely dependent upon Hitachis ability to perform under our manufacturing agreement. In October 2001, SynX entered into a development and manufacturing agreement with Princeton BioMeditech Corporation (PBM)
which granted PBM exclusive rights to develop and manufacture certain point-of-care products of SynX, as well as rights to share in the profits of such products. As a result, our success in the point-of-care market is dependent upon PBMs
ability to perform under the agreement.



We may be unsuccessful
in entering into other collaborative arrangements to develop and commercialize our products. In addition, disputes may arise over ownership rights to intellectual property, know-how or technologies developed with our collaborators.



We recently announced our second-generation instrument system. The transition to new
products subjects us to risks and uncertainties, including increased risks of excess or obsolete inventory and inventory related write-downs.



In October 2004, we announced our second-generation instrument system, the NanoChip® 400. This new instrument is expected to begin shipping in 2005. Risks inherent in the transition to our
second-generation system and other new products we may release in the future include the following:



| |  |  | potential delays in initial shipments of new products;
| | - |  | ------------------------------------------------------



| |  |  | the possibility that new products may erode demand for our current products, including those under reagent rental agreements, causing a decline in sales of current products and an
excessive, obsolete supply of inventory;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | potential delays in customer purchases in anticipation of new product releases or a decision by customers to evaluate new products for longer periods of time before making a
purchase;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | uncertainties in product pricing and market acceptance;
| | - |  | -------------------------------------------------------



| |  |  | additional costs related to providing customer support and service for both first generation and second generation systems; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | unexpected technical or operational problems with the new products.
| | - |  | -------------------------------------------------------------------



If any of these risks occur, our revenues could decline and our financial condition could be harmed.



If our acquisitions are unsuccessful, our business may be harmed.



As part of our business strategy, we have acquired companies, technologies
and product lines to complement our internally developed products. We expect that acquisitions will remain a part of our growth strategy going forward. Acquisitions involve numerous risks, including the following:



| |  |  | The possibility that we will pay more than the value we derive from the acquisition;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | Difficulties in integration of the operations, technologies, and products of the acquired companies;
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | The assumption of certain known and unknown liabilities of the acquired companies;
| | - |  | ----------------------------------------------------------------------------------



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| |  |  | Difficulties in retaining key relationships with employees, customers, partners and suppliers of the acquired company.
| | - |  | ----------------------------------------------------------------------------------------------------------------------



Any of these factors could have a negative impact on our business, results of
operations or financing position.



Future acquisitions could
also result in potentially dilutive issuances of equity securities, the incurrence of debt, contingent liabilities and/or amortization expenses related to certain intangible assets and increased operating expenses, which could adversely affect our
results of operations and financial condition. In addition, to the extent that the economic benefits associated with any of our acquisitions diminish in the future, we may be required to record additional write downs of goodwill, intangible assets
or other assets associated with such acquisitions, which would adversely affect our operating results.



We may not realize the benefits that we anticipate from our recent acquisitions of Epoch Biosciences, Inc. and SynX Pharma Inc. due to integration and other challenges.



We completed two significant acquisitions in 2004: the acquisition of SynX
Pharma Inc. in April 2004 and Epoch Biosciences, Inc. in December 2004. We expect that the SynX product line will accelerate our entry into the point-of-care market and we expect that the acquisition of Epoch will result in a material increase in
revenues during 2005. However, we cannot be certain that we will achieve these and other benefits which we currently expect from these acquisitions. The process of integrating these acquired companies requires significant efforts and expenditures,
including the coordination of information technologies, research and development, sales and marketing, administration and manufacturing. Combining our product offerings is a complex and lengthy process involving a number of steps in which we will
seek to achieve increasing degrees of integration of our products. Additionally, SynX is located in Canada and Epoch is located in Washington, and because our facilities are physically separated, it may be difficult for us to communicate effectively
with, manage and integrate these employees and operations with the rest of the Company. If we are not able to integrate the operations of these acquired companies and businesses successfully, we may not be able to meet our expectations of future
results of operations.



Factors that will affect the success of
these acquisitions and any future acquisitions include the following:



| |  |  | our ability to manage a more complex corporate structure that requires additional resources for such responsibilities as tax planning, foreign currency management, financial
reporting and risk management;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to retain key employees of acquired companies; and
| | - |  | --------------------------------------------------------------



| |  |  | our ability to increase revenues due to the integration of the products and technologies of the acquired companies; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to operate efficiently following the completion of acquisitions and to achieve cost savings.
| | - |  | --------------------------------------------------------------------------------------------------------



Even if we are able to successfully integrate our acquired operations, we may never realize the anticipated benefits of the
SynX and Epoch acquisitions, or any other acquisition. Our failure to achieve these benefits and synergies could have a material adverse effect on our business, results of operations and financial condition.



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We have a history of net losses. We expect to continue to incur net losses and we may not achieve or maintain
profitability.



Since our inception, we have incurred
cumulative net losses which, as of June 30, 2005, total approximately $233.1 million. Moreover, our negative cash flow and losses from operations will continue for the foreseeable future. We may never generate sufficient product revenue to become
profitable. We also expect to have quarter-to-quarter fluctuations in revenues, expenses and losses, which fluctuations could be significant. The amount and timing of product revenue recognition and cash flow may depend on whether potential
customers for the NanoChip® System choose to enter
into sales, reagent rentals, cost-per-test or development site transactions. We believe our future operating results may be subject to quarterly fluctuations due to a variety of factors, including, but not limited to, market acceptance of the second
generation NanoChip® 400 System, acquisitions, and
potential other products under development, including the CHF product and diagnostics related to infectious disease, the type of acquisition program our potential customers may choose, whether and when new products are successfully developed and
introduced by us or our competitors, and the achievement of milestones under our collaborative agreements with Hitachi and various government agencies. The recognition of revenue under contracts, grants and sponsored research agreements will be
subject to significant fluctuations in both timing and amount and therefore our results of operations for any period may not be comparable to the results of operations for any other period.



To develop and sell our products successfully, we may need to increase our
spending levels in research and development, as well as in selling, marketing and administration. We may have to incur these increased spending levels before knowing whether our products can be sold successfully.



Changes in financial accounting standards related to stock option expenses are expected
to have a significant effect on our reported results.



The FASB recently issued a revised standard that requires that we record compensation expense in the statement of operations for employee stock options using the fair value method. The adoption of the new standard is expected to have a
significant effect on our reported earnings, although it will not affect our cash flows, and could adversely impact our ability to provide accurate guidance on our future reported financial results due to the variability of the factors used to
establish the value of stock options. As a result, the adoption of the new standard in the first quarter of fiscal 2006 could negatively affect our stock price and our stock price volatility.



We will need additional capital in the future. If additional capital is not available,
we may have to curtail or cease operations.



We will
need to raise more money to continue the research and development necessary to further develop our current products to bring our products to market and to further our manufacturing and marketing capabilities. We may seek additional funds through
public and private stock offerings, arrangements with corporate partners, borrowings under lease lines of credit or other sources. If we can not raise more money, we will have to reduce our capital expenditures, scale back our development of new
products, reduce our workforce and seek to license to others products or technologies that we otherwise would seek to commercialize ourselves. The amount of money we will need will depend on many factors, including among others:



| |  |  | the progress of our research and development programs;
| | - |  | ------------------------------------------------------



| |  |  | the commercial arrangements we may establish;
| | - |  | ---------------------------------------------



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| |  |  | the time and costs involved in:
| | - |  | -------------------------------



| |  |  | scaling up our manufacturing capabilities;
| | - |  | ------------------------------------------



| |  |  | meeting regulatory requirements, including meeting necessary Quality System Regulations or QSRs and obtaining necessary domestic and international regulatory clearances or
approvals;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | acquisition(s) or investment(s) into other businesses
| | - |  | -----------------------------------------------------



| |  |  | filing, prosecuting, defending and enforcing patent claims and litigation; and
| | - |  | ------------------------------------------------------------------------------



| |  |  | the scope and results of our future clinical trials, if any.
| | - |  | ------------------------------------------------------------



Additional capital may not be available on terms acceptable to us, or at all. Any additional equity financing would likely be dilutive to stockholders,
and debt financing, if available, may include restrictive covenants and require significant collateral.



Competing technologies may adversely affect us.



We expect to encounter intense competition from a number of companies that offer products in our targeted application areas. We anticipate that our competitors in these areas will include:



| |  |  | health care and other companies that manufacture laboratory-based tests and analyzers;
| | - |  | --------------------------------------------------------------------------------------



| |  |  | diagnostic and pharmaceutical companies;
| | - |  | ----------------------------------------



| |  |  | companies developing drug discovery technologies;
| | - |  | -------------------------------------------------



| |  |  | companies developing molecular diagnostic tests; and
| | - |  | ----------------------------------------------------



| |  |  | companies developing point-of-care diagnostic tests.
| | - |  | ----------------------------------------------------



If we are successful in developing products in these areas, we will face competition from established companies and numerous development-stage companies
that continually enter these markets. In many instances, our competitors have substantially greater financial, technical, research and other resources and larger, more established marketing, sales, distribution and service organizations than us.
Moreover, these competitors may offer broader product lines and have greater name recognition than us and may offer discounts as a competitive tactic.



In addition, several development-stage companies are currently making or developing products that compete with or will compete with our potential
products. Our competitors may succeed in developing, obtaining approval from the U.S. Food and Drug Administration or marketing technologies or products that are more effective or commercially attractive than our current or potential products or
that render our technologies and current or potential products obsolete.



As these companies develop their technologies, they may develop proprietary positions that may prevent us from successfully commercializing products.



Also, we may not have the financial resources, technical expertise or marketing, distribution or support capabilities to
compete successfully in the future.



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The uncertainty of patent and proprietary technology protection may adversely affect us.



Our success will depend in part on obtaining and maintaining meaningful
patent protection on our inventions, technologies and discoveries. Our ability to compete effectively will depend on our ability to develop and maintain proprietary aspects of our technology, and to operate without infringing the proprietary rights
of others, or to obtain rights to third-party proprietary rights, if necessary. Our pending patent applications may not result in the issuance of patents. Our patent applications may not have priority over others applications, and even if
issued, our patents may not offer protection against competitors with similar technologies. Any patents issued to us may be challenged, invalidated or circumvented, and the rights created thereunder may not afford us a competitive advantage.



We also rely upon trade secrets, technical know-how and
continuing inventions to develop and maintain our competitive position. Others may independently develop substantially equivalent proprietary information and techniques or otherwise gain access to our trade secrets or disclose our technology and we
may not be able to meaningfully protect our trade secrets, or be capable of protecting our rights to our trade secrets. We seek to protect our technology and patents, in part, by confidentiality agreements with our employees and contractors. Our
employees may breach their existing Proprietary Information, Inventions, and Dispute Resolution Agreements and these agreements may not protect our intellectual property. This could have a material adverse effect on us.



Our products could infringe on the intellectual property rights of others, which may
subject us to future litigation and cause us to be unable to license technology from third parties.



Our commercial success also depends in part on us neither infringing valid, enforceable patents or proprietary rights of third parties, nor breaching any
licenses that may relate to our technologies and products. We are aware of other third-party patents that may relate to our technology. It is possible that we may unintentionally infringe these patents or other patents or proprietary rights of third
parties. We may in the future receive notices claiming infringement from third parties as well as invitations to take licenses under third-party patents. Any legal action against us or our collaborative partners claiming damages and seeking to
enjoin commercial activities relating to our products and processes affected by third-party rights may require us or our collaborative partners to obtain licenses in order to continue to manufacture or market the affected products and processes. In
addition, these actions may subject us to potential liability for damages. We or our collaborative partners may not prevail in an action and any license required under a patent may not be made available on commercially acceptable terms, or at all.



There are many U.S. and foreign patents and patent
applications held by third parties in our areas of interest, and we believe that there may be significant other litigation in the industry regarding patent and other intellectual property rights. Additional litigation could result in substantial
costs and the diversion of managements efforts regardless of the result of the litigation. Additionally, the defense and prosecution of interference proceedings before the U.S. Patent and Trademark Office, or USPTO, and related administrative
proceedings would result in substantial expense to us and significant diversion of effort by our technical and management personnel. We may in the future become subject to other USPTO interference proceedings to determine the priority of inventions.
In addition, laws of some foreign countries do not protect intellectual property to the same extent as do laws in the U.S., which may subject us to additional difficulties in protecting our intellectual property in those countries.



We are aware of U.S. and European patents and patent applications owned by
Oxford Gene Technologies. We have opposed one allowed European patent that had broad claims to array technology for analyzing a predetermined polynucleotide sequence. Oxford Genes position with respect to the opposed patent is that the claims
relate to what it terms the diagnostic mode. Those claims have now



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been narrowed before the Opposition Division of the European Patent Office to the point that, if these claims remain final before the European Patent Office,
we believe they would not be infringed by our technology. In the oral proceedings before the Opposition Division on November 13, 14, and 15, 2001, the Division determined that the claims language must be limited to arrays with smooth,
impermeable surfaces. The case is currently on appeal. If the decision of the Opposition Division is successfully appealed by Oxford Gene and the original claims are reinstated, or if an application relating to arrays is issued in another
country with claims as broad as the original European patent, we could be subject to infringement accusations that could delay or preclude sales of some or all of our anticipated diagnostic products.



We may continue to be involved in intellectual property litigation that may be costly,
time-consuming and may impact our competitive position.



In December 2002, Oxford Gene filed a complaint against us in the United States District Court for the District of Delaware claiming that we infringe U.S. Patent No. 6,054,270 entitled Analytical Polynucleotide Sequences. In
April 2003, we filed an answer to the complaint that denied that we infringe this patent. In October 2003, we entered into a settlement agreement with Oxford Gene Technologies pursuant to which the lawsuit was dismissed by Oxford Gene Technology
without prejudice. If the litigation were to be reinitiated, significant attorneys costs and fees could result. Although it is our position that Oxford Genes assertions of infringement have no merit, neither the outcome of any further
litigation nor the amount and range of potential fees can be assessed. No assurances can be given that we would prevail in any future lawsuits or that we could successfully defend ourselves against any future claims.



The regulatory approval process is expensive, time consuming, uncertain and may prevent
us from obtaining or maintaining required approvals for the commercialization of our products.



The manufacturing, labeling, distribution and marketing of any diagnostic products we may develop will be subject to regulation in the U.S. and other
countries. If we are not in compliance with these regulations, we could be subject to several problems such as:



| |  |  | failure to obtain necessary regulatory approvals or clearances for our products on a timely basis, or at all;
| | - |  | -------------------------------------------------------------------------------------------------------------



| |  |  | delays in receipt of or failure to receive approvals or clearances;
| | - |  | -------------------------------------------------------------------



| |  |  | the loss of previously received approvals or clearances;
| | - |  | --------------------------------------------------------



| |  |  | limitations on intended uses imposed as a condition of approvals or clearances; or
| | - |  | ----------------------------------------------------------------------------------



| |  |  | failure to comply with existing or future regulatory requirements.
| | - |  | ------------------------------------------------------------------



In the U.S., the Food and Drug Administration, or FDA, regulates as medical devices most test systems, kits and reagents that are marketed for human in
vitro diagnostic use. Pursuant to the Federal Food, Drug, and Cosmetic Act, the FDA regulates the preclinical and clinical testing, design, safety, effectiveness, manufacture, labeling, distribution and promotion of medical devices. We will not be
able to commence marketing or commercial sales in the U.S. of these products until we receive an exemption, clearance or approval from the FDA, which can be a lengthy, expensive and uncertain process. We have not applied for FDA or other regulatory
approvals with respect to any of our current products or products under development. We may experience difficulties that could delay or prevent the successful development, introduction and marketing of proposed products. Regulatory clearance or
approval of any



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proposed products may not be granted by the FDA or foreign regulatory authorities on a timely basis, if at all. Noncompliance with applicable FDA
requirements can result in:



| |  |  | criminal prosecution, civil penalties, other administrative sanctions or judicially imposed sanctions, such as injunctions;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | recall or seizure of products;
| | - |  | ------------------------------



| |  |  | total or partial suspension of production; and
| | - |  | ----------------------------------------------



| |  |  | failure of the government to grant premarket clearance or premarket approval for devices or withdrawal of marketing clearances or approvals once granted.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------



The FDA also has the authority to request the recall, repair, replacement
or refund of the cost of any regulated device that may eventually be manufactured or distributed by us. Any devices manufactured or distributed by us pursuant to FDA clearance or approvals are subject to thorough and continuing regulation by the FDA
and certain state agencies, including the California Department of Health Services.



Our dependence on suppliers for materials could impair our ability to manufacture our products.



Outside vendors provide key components and raw materials used by us, Hitachi and PBM in the manufacture of our products. Although we believe that
alternative sources for these components and raw materials are available, any supply interruption in a limited or sole source component or raw material would harm our and Hitachis or PBMs ability to manufacture our products until a new
source of supply is identified and qualified, including qualification under applicable FDA regulations. In addition, an uncorrected defect or suppliers variation in a component or raw material, either unknown to us, Hitachi or PBM or
incompatible with our, Hitachi or PBMs manufacturing processes, could harm our, Hitachi or PBMs ability to manufacture our products. We, Hitachi or PBM may not be able to find a sufficient alternative supplier in a reasonable time
period, or on commercially reasonable terms, if at all. If we, Hitachi or PBM fail to obtain a supplier for the manufacture of components of our products, we may be forced to curtail or cease operations.



If we are unable to manufacture products on a commercial scale, our business may
suffer.



Hitachi manufactures our NanoChip® System, including the second-generation NanoChip® 400, we manufacture our NanoChip® Cartridges, our ASRs and most of our other products,
and PBM manufactures our point-of-care products. We, Hitachi and PBM rely on subcontractors to manufacture the limited quantities of microchips and other components we require for use by and sale to our customers, as well as for internal and
collaborative purposes. Manufacturing, supply and quality control problems may arise as we, Hitachi or PBM either alone, together or with subcontractors, attempt to further scale up manufacturing procedures or to manufacture new products. We,
Hitachi or PBM may not be able to scale-up in a timely manner or at a commercially reasonable cost. Problems could lead to delays or pose a threat to the ultimate commercialization of our products and cause us to fail.



We, Hitachi or PBM or any of our contract manufacturers could encounter
manufacturing difficulties, including those relating to:



| |  |  | the ability to scale up manufacturing capacity;
| | - |  | -----------------------------------------------



| |  |  | production yields;
| | - |  | ------------------



| |  |  | quality control and assurance; or
| | - |  | ---------------------------------



| |  |  | shortages of components or qualified personnel.
| | - |  | -----------------------------------------------



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Our manufacturing facilities and those of Hitachi and PBM and any other of our contract manufacturers are
or will be subject to periodic regulatory inspections by the FDA and other federal, state and international regulatory agencies and these facilities are or may become subject to Quality System Regulation, or QSR, requirements of the FDA. If we,
Hitachi, PBM or our third-party manufacturers, fail to maintain facilities in accordance with QSR regulations, other international quality standards or other regulatory requirements, then the manufacture process could be suspended or terminated
which would harm us.



Lead times for obtaining materials and components
for our products and the manufacturing and introduction of our products may vary significantly which could lead to excess inventory levels as well as shortages of critical components and products if our supply and demand forecasts are inaccurate.



We anticipate that our products, including our ASRs
and most of our other products will be manufactured and introduced by us and third parties, if any, based on forecasted demand and that we will seek to purchase components and materials in anticipation of the actual receipt of purchase orders from
our customers. Lead times for materials and components to be included in our products vary significantly and may depend on factors such as the business practices of each specific supplier and the terms of the particular contracts, as well as the
overall market demand for such materials and components at any given time. Also, we often rely on our own and third party forecasted demand for various products and the accuracy of such forecasts may depend on a number of factors, including but not
limited to, government reports and recommendations for certain genetic testing, regulatory burdens, competitive products, the nature and effectiveness of our products, the timing and extent of the introduction of our products into the marketplace
and other factors. If the forecasts are inaccurate, we could experience fluctuations in excess inventory of our products, or shortages of critical components or products, either of which could cause our business to suffer.



We currently rely on one manufacturer of our Workstation and for certain future
generations of the Workstation and other hardware products, one manufacturer for our point-of-care products, and only we manufacture our NanoChip® Cartridges, and our ASRs and most of our other products, which may delay the manufacture and shipment of our products to customers.



We have signed an exclusive manufacturing agreement with Hitachi to
manufacture our second generation NanoChip® 400
workstations and other hardware products to be developed. We have retained exclusive rights pursuant to each agreement to manufacture the NanoChip® Cartridges. Pursuant to the manufacturing agreements and the collaboration agreement, each party is obligated to provide the other with certain notice
periods if such party determines to curtail or terminate the manufacturing relationship. Nevertheless, while alternative manufacturers of our Workstation and other products currently exist, a lengthy process would be required to negotiate and begin
work under a manufacturing agreement with a new manufacturer which could disrupt our manufacturing process and harm our business.



With the acquisition of SynX we acquired an exclusive manufacturing agreement with PBM for the manufacture of our future point-of-care products. The
manufacturing of our point-of-care products depends on certain intellectual property licensed by PBM and it is unlikely we could manufacture or find an alternative manufacture of the expect design of these future products without this intellectual
property. Without this agreement our future revenues, if any, from our point-of-care products could be severely impacted.



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The number of our sales and marketing employees may not result in corresponding numbers of sales or placements of
the NanoChip® System, the sale of ASRs,
point-of-care diagnostic products or other Nanogen products.



As of June 30, 2005, we had 31 total employees in our worldwide sales and marketing group.



Developing, training and monitoring this sales and marketing force has required and will further require capital and time expenditures by us and certain
of our employees. The size of our sales and marketing force may not result in corresponding numbers of sales or placements of the NanoChip® System nor increased product revenues associated with such sales or placements or our ASRs, point-of-care diagnostic products or other products. We may
be required to increase or decrease the size of the sales and marketing force as deemed necessary and such increases or decreases in staff will require additional capital and time expenditures by us and our employees.



Failure to expand our international sales as we intend would reduce our ability to
become profitable.



We expect that a portion of our
sales will be made outside the United States. A successful international effort will require us to develop relationships with international customers and partners. We may not be able to identify, attract or retain suitable international customers
and distribution partners. As a result, we may be unsuccessful in our international expansion efforts. Furthermore, expansion into international markets will require us to continue to establish and expand foreign sales and marketing efforts, hire
additional sales and marketing personnel and maintain good relations with our foreign customers and distribution partners.



International operations involve a number of risks not typically present in domestic operations, including:



| |  |  | currency fluctuation risks;
| | - |  | ---------------------------



| |  |  | changes in regulatory requirements;
| | - |  | -----------------------------------



| |  |  | political and economic instability, including the war on terrorism; and
| | - |  | -----------------------------------------------------------------------



| |  |  | difficulties in staffing and managing foreign offices.
| | - |  | ------------------------------------------------------



In addition, we expect increased costs in deploying the NanoChip® System, including the second-generation NanoChip® 400, ASRs, point-of-care diagnostics, and other products in foreign countries due to;



| |  |  | licenses, tariffs and other trade barriers;
| | - |  | -------------------------------------------



| |  |  | costs and difficulties in establishing and maintaining foreign distribution partnerships;
| | - |  | -----------------------------------------------------------------------------------------



| |  |  | potentially adverse tax consequences; and
| | - |  | -----------------------------------------



| |  |  | the burden of complying with a wide variety of complex foreign laws and treaties.
| | - |  | ---------------------------------------------------------------------------------



Our international sales and marketing efforts will also be subject to the risks associated with the imposition of
legislation and regulations relating to the import or export of high technology products. We cannot predict whether tariffs or restrictions upon the importation or exportation of our products will be implemented by the United States or other
countries.



We may lose money when we exchange foreign currency
received from international sales into U.S. dollars. A portion of our business is expected to be conducted in currencies other than the U.S.



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dollar. We recognize foreign currency gains or losses arising from our operations in the period incurred. As a result, currency fluctuations between the U.S.
dollar and the currencies in which we do business will cause foreign currency transaction gains and losses. We cannot predict the effects of exchange rate fluctuations upon our future operating results because of the number of currencies involved,
the variability of currency exposure and the potential volatility of currency exchange rates. We currently do not engage in foreign exchange hedging transactions to manage our foreign currency exposure.



We may have significant product liability exposure.



We face an inherent business risk of exposure to product liability and other
claims in the event that our technologies or products are alleged to have caused harm. These risks are inherent in the testing, manufacturing and marketing of our products. Any product liability claim brought against us could be expensive to defend
and could result in a diversion of managements attention from our core business. A successful product liability claim or series of claims could have an adverse effect on our business, financial condition and results of operations.



If we lose our key personnel or are unable to attract and retain additional
personnel, we may not be able to pursue collaborations or develop our own products.



We are highly dependent on the principal members of our scientific, manufacturing, marketing, administrative, management and executive personnel, the loss of whose services might significantly delay or prevent the
achievement of our objectives. We face competition from other companies, academic institutions, government entities and other organizations in attracting and retaining personnel. For the six months ended June 30, 2005 and the years ended December
31, 2004, 2003 and 2002, we experienced turnover rates of 10%, 27% 25% and 29%, respectively. Turnover at these rates may, and if they continue, will adversely affect us.



The turnover rates above exclude the impact of reductions in workforce. In April 2003, we reduced our workforce by
approximately 20% and incurred a severance charge of approximately $500,000 in the second quarter of 2003. Also, in October 2002, we reduced our workforce by approximately 10% and incurred severance charges of approximately $290,000 during the
fourth quarter of 2002. Continued layoffs could have an adverse effect on us.



Health care reform and restrictions on reimbursement may limit our returns on potential products.



Our ability to earn sufficient returns on our products will depend in part on the extent to which reimbursement for our products and related treatments
will be available from:



| |  |  | government health administration authorities;
| | - |  | ---------------------------------------------



| |  |  | private health coverage insurers;
| | - |  | ---------------------------------



| |  |  | managed care organizations; and
| | - |  | -------------------------------



| |  |  | other organizations.
| | - |  | --------------------



If appropriate reimbursement cannot be obtained, we could be prevented from successfully commercializing our potential products.



There are efforts by governmental and third party payors to contain or reduce
the costs of health care through various means. We expect that there will continue to be a number of legislative proposals to



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implement government controls. The announcement of proposals or reforms could impair our ability to raise capital. The adoption of proposals or reforms could
impair our business.



Additionally, third party payors are
increasingly challenging the price of medical products and services. If purchasers or users of our products are not able to obtain adequate reimbursement for the cost of using our products, they may forego or reduce their use. Significant
uncertainty exists as to the reimbursement status of newly approved health care products, and whether adequate third party coverage will be available.



If ethical and other concerns surrounding the use of genetic information become widespread, we may have less demand for our products.



Genetic testing has raised ethical issues regarding confidentiality and the
appropriate uses of the resulting information. For these reasons, governmental authorities may call for limits on or regulation of the use of genetic testing or prohibit testing for genetic predisposition to certain conditions, particularly for
those that have no known cure. Any of these scenarios could reduce the potential markets for our products, which could seriously harm our business, financial condition and results of operations.



We use hazardous materials in our business. Any claims relating to improper handling,
storage or disposal of these materials could be time consuming and costly.



Our research and development processes involve the controlled storage, use and disposal of hazardous materials including, but not limited to, biological hazardous materials and radioactive compounds. We are subject to
federal, state and local regulations governing the use, manufacture, storage, handling and disposal of materials and waste products. Although we believe that our safety procedures for handling and disposing of these hazardous materials comply with
the standards prescribed by law and regulation, the risk of accidental contamination or injury from hazardous materials cannot be completely eliminated. In the event of an accident, we could be held liable for any damages that result, and any
liability could exceed the limits or fall outside the coverage of our insurance. We may not be able to maintain insurance on acceptable terms, or at all. We could be required to incur significant costs to comply with current or future environmental
laws and regulations.



Our stock price could continue to be highly
volatile and our stockholders may not be able to resell their shares at or above the price they paid for them.



The market price of our common stock, like that of many other life sciences companies, has been highly volatile and is likely to continue to be highly
volatile. The following factors, among others, could have a significant impact on the market price of our common stock:



| |  |  | the results of our premarket studies and clinical trials or those of our collaborators or competitors or for diagnostic testing in general;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | evidence of the safety or efficacy of our potential products or the products of our competitors;
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | the announcement by us or our competitors of technological innovations or new products;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | the announcement by us of acquisitions by customers of our NanoChip® System, ASRs or our other products;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | announcements by us of government grants or contracts or of failure to obtain such government grants or contracts;
| | - |  | ------------------------------------------------------------------------------------------------------------------



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| |  |  | announcements by us of involvement in litigation;
| | - |  | -------------------------------------------------



| |  |  | developments concerning our patents or other proprietary rights or those of our competitors, including other litigation or patent office proceedings;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | loss of key board, executive, management or other personnel or the increase or decrease in size of our sales and marketing staff;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | governmental regulatory actions or the failure to gain necessary clearances or approvals;
| | - |  | -----------------------------------------------------------------------------------------



| |  |  | the ability to obtain necessary licenses;
| | - |  | -----------------------------------------



| |  |  | changes or announcements in reimbursement policies;
| | - |  | ---------------------------------------------------



| |  |  | developments with our subsidiaries and collaborators;
| | - |  | -----------------------------------------------------



| |  |  | changes in or announcements relating to acquisition programs for our products, including the expiration or continuation of our development site agreements;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | period-to-period fluctuations in sales, inventories and our operating results;
| | - |  | ------------------------------------------------------------------------------



| |  |  | market conditions for life science stocks, nanotechnology stocks and other stocks in general;
| | - |  | ---------------------------------------------------------------------------------------------



| |  |  | purchases by Nanogen pursuant to our stock repurchase program;
| | - |  | --------------------------------------------------------------



| |  |  | changes in estimates of our performance by securities analysts and the loss of coverage by one or more securities analysts;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | the announcement by us of any stock repurchase plan, any purchases made thereunder by us and any cessation of the program by us;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------



| |  |  | changes in the United States war on terrorism and other geopolitical and military situations in which the country is involved; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------



| |  |  | changes in the price of petroleum, heating oil and any other raw materials that we use at our facilities.
| | - |  | ---------------------------------------------------------------------------------------------------------



Investor confidence and share value may be adversely impacted if our independent auditors are unable to provide us with the
attestation of the adequacy of our internal controls over financial reporting, as required by Section 404 of the Sarbanes-Oxley Act of 2002.



As directed by Section 404 of the Sarbanes-Oxley Act of 2002, the SEC adopted rules requiring public companies to include a report of management on our internal controls
over financial reporting in our annual reports on Form 10-K and quarterly Form 10-Qs that contains an assessment by management of the effectiveness of our internal controls over financial reporting. In addition, our independent auditors must attest
to and report on managements assessment of the effectiveness of our internal controls over financial reporting as of the end of the fiscal year. How companies are maintaining their compliance with these requirements including internal control
reforms, if any, to comply with the requirements of Section 404, and how independent auditors are applying these requirements and testing companies internal controls, remain subject to uncertainty. We expect that our internal controls will
continue to evolve as our business activities change. In addition, the acquisitions we made during 2004 and any future acquisitions we make may impact our ability to maintain effective internal controls over financial reporting. As permitted by SEC
rules, we were not required to include our SynX and Epoch subsidiaries in our managements assessment of internal control over financial reporting for the year ended December 31, 2004. However, for the year ending December 31, 2005, we will be
required to assess the effectiveness of the internal controls of these companies which we acquired in 2004, in addition to our



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existing business. If, during any year, our independent auditors are not satisfied with our internal controls over financial reporting or the level at which
these controls are documented, designed, operated, tested or assessed, or if the independent auditors interpret the requirements, rules or regulations differently than we do, then they may decline to attest to managements assessment or may
issue a report that is qualified. This could result in an adverse reaction in the financial marketplace due to a loss of investor confidence in the reliability of our financial statements, which ultimately could negatively impact the market price of
our shares.



Our anti-takeover provisions could discourage potential
takeover attempts and make attempts by stockholders to change management more difficult.



The approval of two-thirds of our voting stock is required to take some stockholder actions, including the amendment of any of the anti-takeover
provisions contained in our certificate of incorporation or amendment of our bylaws.



Further, pursuant to the terms of our stockholder rights plan adopted in November 1998, as amended, we have distributed a dividend of one right for each outstanding share of common stock. These rights will cause
substantial dilution to the ownership of a person or group that attempts to acquire us on terms not approved in advance by our board of directors and may have the effect of deterring unsolicited takeover attempts.



Our business is subject to changing regulation of corporate governance and public
disclosure that has increased both our costs and the risk of noncompliance.



Because our common stock is publicly traded, we are subject to certain rules and regulations of federal, state and financial market exchange entities charged with the protection of investors and the oversight of
companies whose securities are publicly traded. These entities, including the Public Company Accounting Oversight Board, the SEC and Nasdaq, have recently issued new requirements and regulations and continue to develop additional regulations and
requirements in response to recent laws enacted by Congress, most notably the Sarbanes-Oxley Act of 2002. Our efforts to comply with these new regulations have resulted in, and are likely to continue to result in, increased general and
administrative expenses and a diversion of management time and attention from revenue-generating activities to compliance activities.



Moreover, because these laws, regulations and standards are subject to varying interpretations, their application in practice may evolve over time as new
guidance becomes available. This evolution may result in continuing uncertainty regarding compliance matters and additional costs necessitated by ongoing revisions to our disclosure and governance practices.



We will be dependent upon our agreement with Applied Biosystems for a significant
portion of our revenues for 2005 and future periods, and a reduction of sales under or early termination of this agreement would seriously harm our revenues and operating results and would likely cause our stock price to decline.



In January 1999, Epoch and Applied Biosystems entered into a License and
Supply Agreement pursuant to which we licensed some of our technology to Applied Biosystems for use in its TaqMan® 5- nuclease real-time PCR assays, (TaqMan® is a registered trademark of Roche Molecular Systems, Inc.). In July 1999, Epoch licensed its proprietary software, which speeds the design of oligonucleotide probes used in the study of
genes, to Applied Biosystems. In August 2000, the agreement was amended to, among other things, provide for Epoch manufacturing product for Applied Biosystems. In July 2002 this



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agreement was further amended to remove the manufacturing rights from the contract effective October 2002, redefine product categories, increase the minimum
royalties and royalty rates, and establish that minimum royalties are measured and paid quarterly. We will depend upon product sales and royalties from Applied Biosystems sales of its TaqMan® assays under this agreement for a significant portion of our revenues in 2005 and
future periods.



The technology licenses and Applied
Biosystems obligation to pay us royalties on their sale of products that incorporate Epochs technologies continue until the expiration of the underlying patents. Since the July 2002 amendment that increased the minimum royalty levels,
quarterly royalties earned based on actual sales by Applied Biosystems have been less than the contractual minimum royalty levels. As a result, the royalty payments have been in the amount of the specified quarterly minimum level. The current
agreement calls for quarterly royalty minimums through the third quarter of 2005. Thereafter, we will receive royalty payments based on actual sales which expected to result in a significant reduction of royalties received.



Either party may terminate the agreement upon 180 days written notice. In the
event that this agreement is terminated, our revenues, financial condition and operating results would be adversely affected and our stock price would likely decline.



|Item 3. | Quantitative and Qualitative Disclosures About Market Risk
|------- | ----------------------------------------------------------



We are exposed to market risk related to fluctuations in interest rates and in foreign currency exchange rates.



Interest rate exposure



Our exposure to market risk due to fluctuations in interest rates relates
primarily to short-term investments. These short-term investments, reported at an aggregate fair market value of $13.1 million as of June 30, 2005, consist primarily of investments in debt instruments of financial institutions and corporations with
strong credit ratings and United States government obligations. These securities are subject to market rate risk inasmuch as their fair value will fall if market interest rates increase. If market interest rates were to increase immediately and
uniformly by 100 basis points from the levels prevailing at June 30, 2005, for example, the fair value of the portfolio would not decline by a material amount. We do not use derivative financial instruments to mitigate the risk inherent in these
securities. However, we do attempt to reduce such risks by generally limiting the maturity date of such securities, diversifying our investments and limiting the amount of credit exposure with any one issuer. While we do not always have the intent,
we do currently have the ability to hold these investments until maturity and, therefore, believe that reductions in the value of such securities attributable to short-term fluctuations in interest rates would not materially affect our financial
position, results of operations or cash flows. Changes in interest rates would, of course, affect the interest income we earn on our cash balances after re-investment.



Foreign Currency Exchange Rate Exposure



The functional currency for our Canadian and Netherlands subsidiaries is the U.S. dollar. The functional currency of our
majority owned subsidiary in Germany is the euro. The German subsidiarys accounts are translated from the euro to the U.S. dollar using the current exchange rate in effect at the balance sheet date for balance sheet accounts, and using the
average exchange rate during the period for revenues and expense accounts. The effects of translation are recorded in accumulated other



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comprehensive income in the consolidated financial statements included herein. In certain instances, our subsidiaries conduct business with customers and
vendors in euros or in other local European currencies. Exchange gains and losses arising from these transactions are recorded using the actual exchange rate differences on the date of the transaction. We have not taken any action to reduce our
exposure to changes in foreign currency exchange rates, such as options or futures contracts, with respect to transactions with our European customers and vendors. The net tangible assets of our foreign subsidiaries, excluding intercompany balances,
was approximately $17.5 million at June 30, 2005.



Notwithstanding the foregoing, the indirect effect of fluctuations in interest rates and foreign currency exchange rates could have a material adverse effect on our business financial condition and results of operations. For example
currency exchange rate fluctuations may affect international demand for our products. In addition, interest rates fluctuations may affect our customers buying patterns. Furthermore, interest rate and currency exchange rate fluctuations may
broadly influence the United States and foreign economies resulting in a material adverse effect on our business, financial condition and results of operations.



Foreign currency exchange rates can be obtained from the website at www.oanda.com.



|ITEM 4. | CONTROLS AND PROCEDURES
|------- | -----------------------



(a) Evaluation of Disclosure Controls and Procedures.



We have carried out an evaluation, under the supervision and the participation of our management, including our principal executive officer
and principal financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange
Act), as of the end of the fiscal quarter covered by this report. Based upon that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures are effective that (a) the
information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SECs rules and forms, and (b) such information is
accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.



(b) Change in Internal Control over Financial Reporting.



During the second quarter of 2005, we continued to implement new processes and controls over
net product sales, cost of sales and other commercial transactions related to the commercial operations resulting from the December 2004 acquisition of Epoch. In the first quarter of 2004, to enhance our operational efficiencies and effectiveness,
we changed our internal controls over financial reporting through the outsourcing of our payroll processing. We implemented various key controls to mitigate the risks associated with such a transition. As of June 30, 2005 we have not tested the
operating effectiveness of the new internal controls related to payroll processing or integration of Epoch. Other than these changes, there were no significant changes in our internal control over financial reporting identified in connection with
the evaluation of such controls that occurred during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect our internal control over financial reporting.



During the second quarter of 2005, there were no significant changes in our internal control
over financial reporting identified in connection with the evaluation of such controls that occurred during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect our internal control over financial
reporting.



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PART II. OTHER INFORMATION



|ITEM 1. | LEGAL PROCEEDINGS
|------- | -----------------



Litigation



In the normal course of business, we have been and will likely continue to be subject to routine litigation incidental to our business, such as claims related to customer
disputes, employment practices, product liability, warranty or patent infringement. Responding to litigation, regardless of whether it has merit, can be expensive and disruptive to normal business operations. However, as litigation is inherently
uncertain, we cannot predict the outcome of such matters. We can provide no assurance that the ultimate outcome, either individually or in the aggregate, will not have a material adverse effect on our financial statements.



|ITEM 2. | UNREGISTERED SALE OF EQUITY SECURITIES AND USE OF PROCEEDS
|------- | ----------------------------------------------------------



Not applicable



|ITEM 3. | DEFAULTS UPON SENIOR SECURITIES
|------- | -------------------------------



Not applicable



|ITEM 4. | SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
|------- | ---------------------------------------------------



| | (a) | On June 9, 2005, we held our Annual Meeting of Stockholders.
| | --- | ------------------------------------------------------------



| | (1) | As listed below, managements director nominee was elected at the meeting:
| | --- | --------------------------------------------------------------------------



|                       |  |                  |  |                      
|---------------------- |  | ---------------- |  | ---------------------
|Name of Nominee        |  | No. of Votes For |  | No. of Votes Withheld
|Howard C. Birndorf     |  | 35,728,269       |  | 1,643,017            
|Robert E. Whalen       |  | 35,776,447       |  | 1,594,839            
|Frank H. Jellinek, Jr. |  | 35,681,589       |  | 1,689,697            
|William G. Gerber      |  | 35,773,799       |  | 1,597,487            



In addition,
directors whose terms of office continue after the Annual Meeting are: Stelios B. Papadopoulos and David R. Schreiber. Val Buonaiuto, whose term of office would have continued after the Annual Meeting, resigned as a director on June 9, 2005.



| | (2) | The proposal to amend the Companys 1997 Stock Incentive Plan to increase the number of shares reserved for issuance thereunder by 1,500,000 was approved with 10,927,227 shares
voting in favor, 3,349,421 shares voting against, and 320,715 shares abstaining. There were 22,773,923 shares classified as broker non-votes.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (3) | The appointment of Ernst & Young LLP as independent auditors of the Company for the fiscal year ending December 31, 2005 was ratified with 36,900,548 shares voting in favor,
352,991 shares voting against, and 117,748 shares abstaining.
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|ITEM 5. | OTHER INFORMATION
|------- | -----------------



On June 9, 2005, our stockholders approved an amendment to our 1997 Stock Incentive Plan that increased the maximum number of shares of common stock authorized for issuance under the plan by



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1,500,000 shares to 10,443,011 shares. This amendment to our 1997 Stock Incentive Plan was approved by our Board of Directors on February 11, 2005, subject
to stockholder approval.



|ITEM 6. | EXHIBITS
|------- | --------



|            |  |                                                                                                                         
|----------- |  | ------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Description                                                                                                             
|            | 
|10.1        |  | 1997 Stock Incentive Plan, as amended (1)(A)                                                                            
|            | 
|31.1        |  | Certifications of Chief Executive Officer Required by Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
|            | 
|31.2        |  | Certifications of Chief Financial Officer Required by Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
|            | 
|32.1        |  | Certifications of Chief Executive Officer Pursuant to Section 906 of the Sarbanes  Oxley Act of 2002.                  
|            | 
|32.2        |  | Certifications of Chief Financial Officer Pursuant to Section 906 of the Sarbanes  Oxley Act of 2002.                  



|(1) | Incorporated by reference to Appendix A of Registrants Proxy Statement on Schedule 14A filed on April 29, 2005.
|--- | ----------------------------------------------------------------------------------------------------------------



|(A) | Indicates management compensatory plan or arrangement
|--- | -----------------------------------------------------



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SIGNATURES



Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.



|                     |  |  |  |                                                  
|-------------------- |  |  |  | -------------------------------------------------
|                     |  |  |  | NANOGEN, INC.                                    
|                     |  | 
|Date: August 9, 2005 |  |  |  | /s/ HOWARD C. BIRNDORF                           
|                     |  |  |  | Howard C. Birndorf                               
|                     |  |  |  | Chairman of the Board and Chief Executive Officer
|                     |  | 
|Date: August 9, 2005 |  |  |  | /s/ ROBERT SALTMARSH                             
|                     |  |  |  | Robert Saltmarsh                                 
|                     |  |  |  | Chief Financial Officer                          



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NANOGEN, INC.

EXHIBIT INDEX



|            |  |                                                                                                                         
|----------- |  | ------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Description                                                                                                             
|            | 
|10.1        |  | 1997 Stock Incentive Plan, as amended(1)(A)                                                                             
|            | 
|31.1        |  | Certifications of Chief Executive Officer Required by Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
|            | 
|31.2        |  | Certifications of Chief Financial Officer Required by Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
|            | 
|32.1        |  | Certifications of Chief Executive Officer Pursuant to Section 906 of the Sarbanes  Oxley Act of 2002.                  
|            | 
|32.2        |  | Certifications of Chief Financial Officer Pursuant to Section 906 of the Sarbanes  Oxley Act of 2002.                  

---

|(1) | Incorporated by reference to Appendix A of Registrants Proxy Statement on Schedule 14A
filed on April 29, 2005.
|--- | ----------------------------------------------------------------------------------------------------------------



|(A) | Indicates management compensatory plan or arrangement.
|--- | ------------------------------------------------------



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